From the homepage, you can begin your search in a few ways: Enter a patent publication or application number, such as US9014905B1, 9014905, or US 14/166,502; Enter freeform text, such as autonomous vehicle camera. You can also enter "exact phrases" and metadata restricts assignee:"Google Inc", inventor:page, and before:2001.; Note: …Find out how to register and maintain a trademark in the U.S., apply for an international trademark, ... Spoofing phone numbers; What to do if scammed; Understanding filing firms; ... About the USPTO Search for patents Search for trademarks. US Department of Commerce. Accessibility.Basic Search has a Quick Lookup option for fast searching with a patent number or published patent application number. It also has an option for two search query text …Patent Public Search | USPTO United States Patent and Trademark Office . Patents . Patent Center; Search patents; Patent applications search; Check private filing status; Check public filing status; A provisional patent application allows you to file without a formal patent claim, oath or declaration, or any information disclosure (prior art) statement. Since June 8, 1995, the United States Patent and Trademark Office (USPTO) has offered inventors the option of filing a provisional application for patent which was designed to provide a ...Watch on. Published on: December 19, 2023 17:30. This microtutorial for Patent Public Search walks you through the steps of finding U.S. patents and published patent applications from particular inventors. Other ways to …2. Using the search screen Searching by case number(s) If you know the case number(s) of the case(s) you are looking for, you can enter these in the Case Number(s) field. You can search national trade marks and international registration numbers (IRNs) in a single search. Separate multiple case numbers using commas, for example 123456,123457 ...Aug 23, 2023 · 4. Click on “Search” button to search for relevant patents; 5. On the result page, click on the patent title or patent number then the patent fullt-ext will be appeared. Advanced Search. The Advanced Search page allows you to query the US patent full-text database using the command line search syntax. Please feel free to call us or send us an e-mail. Phone: +49 30 25992-230 or -231. (Monday through Thursday from 8:00 to 16:00 and Friday from 8:00 to 14:00 local time) E-mail: [email protected]. For more …Nov 30, 2023 · Search our trademark database. Learn about the upcoming summary page feature, which allows you to see key information about an application or registration from your search results, without going to the Trademark Status and Document Retrieval (TSDR) system. Watch previous webinars to learn how to use the new system, and download webinar handouts ... Patent number: 5676977 Type: Grant Filed: May 31, 1996 Date of Patent: Oct 14, 1997 Assignee: Antelman Technologies Ltd. (Providence, RI) Inventor: Marvin S. Antelman (Rehovot) Primary Examiner: Amy HulinaA patent family includes filings of the same invention by the same applicant in multiple countries or jurisdictions." "2019 was a strong year for US patents. 333,530 patent grants were issued by the USPTO — an all-time high. After a down year in 2018, US patent grants rebounded by a solid 15%. US published applications grew by a smaller 5%."U.S. 371 National stage; INTERNATIONAL APPLICATIONS. International application ... Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Application # …US685957A US5215301A US1901052153A US685957A US 685957 A US685957 A US 685957A US 5215301 A US5215301 A US 5215301A US ... 1901-11-05 Publication of US685957A publication Critical patent/US685957A/en 1918-11-05 ... In inductive relation to the primary wire or coil 19 is a secondary s, usually of a much greater number of turns, …References: U.S. and foreign patent documents and other publications cited as related prior art by the inventor and patent examiner. 57: Abstract: A brief, non-technical description of the invention. 58: Field of search: Classifications consulted by the patent examiner during the prior art search. 60: Number and date of provisional application: 63IDS form entry for Design Patent Numbers over D1,000,000 (14MAR2024) Users have reported that they are unable to enter issued design patents over D1,000,000 in the SB/08a form. Users are advised to either submit a customized IDS form or enter the design patent number in the Non-Patent Literature section of the SB/08a form as … United States Prior art keywords score subjects ... Application number US17/106,279 Other versions ... 2021-07-28 Priority to US17/386,606 priority patent/US11348690B2/en Justia Patents Producing Aural Effects By Stimulation US Patent for Method and device for implementing the radio frequency hearing effect Patent (Patent # 6,470,214) ... Patent number: 6470214 Type: Grant Filed: Dec 13, 1996 Date of Patent: Oct 22, 2002 Assignee ...If you already have one or more specific patent numbers, here are a couple of basic options for obtaining the full text and/or images for the patent. Google Patents: Go to the Google Patents website and search for the patent number, using the prefix "US" and no punctuation. For example, search for patent #123,456 as US123456.This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections. This search facility features: flexible search syntax; automatic word stemming and relevance ranking; as well as graphical results.Number of patent applications stifled by U.S. Government secrecy orders 2000-2021 The most important statistics International Intellectual Property Index 2023, by country2. Using the search screen Searching by case number(s) If you know the case number(s) of the case(s) you are looking for, you can enter these in the Case Number(s) field. You can search national trade marks and international registration numbers (IRNs) in a single search. Separate multiple case numbers using commas, for example 123456,123457 ...Contains links to the various databases of the U.S. Patent and Trademark Office. Provides full-text of patents from 1976 to the present and full-page images for patents starting in 1790. Patent images can only be searched by issue date, patent number, and classification. PatFT, AppFT, Pub EAST, and Pub WEST will be retired in …Browse Patents by US Classification. Apparel (Class 2) Baths, closets, sinks, and spittoons (Class 4) Beds (Class 5) Compound tools (Class 7) Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers (Class 8) Boot and shoe making (Class 12) Bridges (Class 14) Brushing, scrubbing, and general cleaning (Class 15)Patents issued between 1790 and 1975 can only be found through the USPTO search and require the patent number, U.S. classification, and issue date. The Google Patent Advanced Search permits users to search by inventor, patent number, assignee, classification number, topic, and date. This applies to patents issued before …U.S. Patents, 1975 - 1999. “This patent dataset is now rather out of date. There are number of more current and more extensive patent databases that are now publicly available. An index of publicly available patent data is maintained by the NBER Innovation Information Initiative. For more information on this Initiative and the patent …An official website of the United States government Here’s how you know keyboard_arrow_down. close. An official website of the United States government ... Search patents; Patent applications search; Check private filing status; Check public filing status; File patents; Patent and Trial Appeal Board; Search assignment;Application number US07/664,176 Inventor Robert A. Monroe ... In a prior patent, U.S. Pat. No. 3,884,218, the present inventor described a method of inducing different levels of sleep, using the FFR technique, in which brain waves could be made to follow superimposed frequency patterns.Espacenet: free access to millions of patent documents. Find out if your invention is unique or if other inventors have filed patent applications that are considered to be prior art. United States Patent and Trademark Office . Patents . Patent Center; Search patents; Patent applications search; Check private filing status; Check public filing status; Publication Publication Date Title. US6470214B1 2002-10-22 Method and device for implementing the radio frequency hearing effect. US7162042B2 2007-01-09 Modulator processing for a parametric speaker system. US6169813B1 2001-01-02 Frequency transpositional hearing aid with single sideband modulation.Toll-Free. 800-786-9199. Local. 571-272-1000. TTY/TDD. 800-877-8339. Email. [email protected]. For general information, mailing addresses, Internet addresses, USPTO.gov accounts, how to use the online fee payment management system and contact information for other USPTO services.Search Options. Use the Basic Text Search to find patent documents containing a specific word or phrase. Use the Patent Document Number Search to find a specific patent document by it's number. Use the Boolean Text Search to find patent documents with words or phrases in one, two or three text fields, using boolean connectors (AND or OR) …Search within the title, abstract, claims, or full patent document: You can restrict your search to a specific field using field names.. Use TI= to search in the title, AB= for the abstract, CL= for the claims, or TAC= for all three. For example, TI=(safety belt). Search by Cooperative Patent Classifications (CPCs): These are commonly used to represent …You can query three Databases: US-PGPUB (U.S. pre-grant applications to 3/2001), USPAT (full-text U.S. patents to 1970, classification and patent number searching to 1790) and USOCR (OCR scanned pre-1970 U.S. patents). By default, all three databases are selected. Use the “Databases” button (red rectangle in Figure 1) to USPTO’s new Diversity Information Platform: Advancing innovation through data-driven action. The unique online platform is free and available to anyone with an internet connection. Home page of the United States Patent and Trademark Office's main web site. Enter Search term for Search USPS.com. Top Searches. PO BOXES; PASSPORTS; FREE BOXES . ... Learn More. Track. What does my tracking number look like? Service / Sample Number. USPS Tracking ... Service / Sample Number. Priority Mail Express International ® EC 000 000 000 US.Watch on. Published on: December 19, 2023 17:30. This microtutorial for Patent Public Search walks you through the steps of finding U.S. patents and published patent applications from particular inventors. Other ways to …US685957A US5215301A US1901052153A US685957A US 685957 A US685957 A US 685957A US 5215301 A US5215301 A US 5215301A US ... 1901-11-05 Publication of US685957A publication Critical patent/US685957A/en 1918-11-05 ... In inductive relation to the primary wire or coil 19 is a secondary s, usually of a much greater number of turns, …You can query three Databases: US-PGPUB (U.S. pre-grant applications to 3/2001), USPAT (full-text U.S. patents to 1970, classification and patent number searching to 1790) and USOCR (OCR scanned pre-1970 U.S. patents). By default, all three databases are selected. Use the “Databases” button (red rectangle in Figure 1) toSearch Options. Use the Basic Text Search to find patent documents containing a specific word or phrase. Use the Patent Document Number Search to find a specific patent document by it's number. Use the Boolean Text Search to find patent documents with words or phrases in one, two or three text fields, using boolean connectors (AND or OR) …U.S. Patents, 1975 - 1999. “This patent dataset is now rather out of date. There are number of more current and more extensive patent databases that are now publicly available. An index of publicly available patent data is maintained by the NBER Innovation Information Initiative. For more information on this Initiative and the patent … Table of Issue Years and Patent Numbers, for Selected Document Types Issued Since 1836 *. The following table displays the calendar year along with the first corresponding document number issued in each year for selected patent document types (utility, design, plant, and reissue patents and statutory invention registrations) Issue. Year. First. Learn how to use Patent Public Search (PPUBS) Advanced in this recorded demonstration with emphasis on design patent searching. PPUBS is a publicly available USPTO search tool that permits searching U.S. patents and U.S. patent application publications. PPUBS has two interfaces: Basic and Advanced. Other ways to view this …Jan 10, 2018 · A Patent Number is assigned by the USPTO. A patent number may include up to eight characters and is formatted as follows: Utility : Patent numbers consist of six, seven or eight digits. Enter the Patent number excluding commas and spaces and omit leading zeroes. Reissue : (e.g., Rennnnnn, RE000126) must enter leading zeroes between "RE" and ... TAF REPORT. ISSUE DATES AND PATENT NUMBERS SINCE 1836: BY YEAR. -- 1836 TO 2001. BY ISSUE DATE -- 1963 - 12/1994. (With addendum for issue dates from 1995 - 2001) April 2002. U.S. PATENT AND TRADEMARK OFFICE INFORMATION PRODUCTS DIVISION / TAF BRANCH PK3 - SUITE 441, WASHINGTON, DC 20231 TEL (703) 306 … If you are new to patent searches, or want to use the functionality that was available in the USPTO’s PatFT/AppFT, select ‘Basic Search’ to look for patents by keywords or common fields, such as inventor or publication number. Select ‘Advanced Search’ to use full query options as well as to further filter a patent search by database ... Publication number: 20240129497. Abstract: The description relates to resource aware object detection for encoded video streams that can identify frames of the video stream that include an object of interest, such as a human, without decoding the frames. Type: Application. Filed: October 18, 2022.IDS form entry for Design Patent Numbers over D1,000,000 (14MAR2024) Users have reported that they are unable to enter issued design patents over D1,000,000 in the SB/08a form. Users are advised to either submit a customized IDS form or enter the design patent number in the Non-Patent Literature section of the SB/08a form as …3 days ago · Plant Patents: United States patent. Plant. 1976-1993 *VAC (United States. Patent Office. [Specifications and drawings of patents] Plant pat.) Plant Patents: United States patent. Plant. 1994-current: JSM 99-245: Reissue Patents: CDR File (Corrections, Disclaimers, Reissues). 1838-1995 *XFR-2: Defensive Publications: Defensive Publications ... USPTO’s new Diversity Information Platform: Advancing innovation through data-driven action. The unique online platform is free and available to anyone with an internet connection. Home page of the United States Patent and …About us Toggle submenu. About us. Find out more about our work, values ... Decisions sorted by number (Art. 112 EPC) Pending petitions for review (Art. 112a EPC) ... Patent knowledge: access our patent databases and search tools. New to patents? Home; Searching for patents United States Patent and Trademark Office - Patent Center Table of Issue Years and Patent Numbers, for Selected Document Types Issued Since 1836 *. The following table displays the calendar year along with the first corresponding document number issued in each year for selected patent document types (utility, design, plant, and reissue patents and statutory invention registrations) Issue. Year. First. The request must include the application's publication number and payment of the appropriate fee. By facsimile: A copy of a patent application publication, a patent application file contents or a particular paper within the file contents of an patent application that was published under 35 U.S.C. 122(b) may be requested by facsimile, with a credit … United States Prior art keywords score subjects ... Application number US17/106,279 Other versions ... 2021-07-28 Priority to US17/386,606 priority patent/US11348690B2/en UK patent search. You can search for patents in the UK using the Intellectual Property Office's (IPO): IPO also maintains separate lists for: To find new UK patent applications and changes to the patent register, check the IPO's patents journal. Businesses in Northern Ireland can get advice on IP matters, including patents, from Invest Northern ...Justia Patents Producing Aural Effects By Stimulation US Patent for Method and device for implementing the radio frequency hearing effect Patent (Patent # 6,470,214) ... Patent number: 6470214 Type: Grant Filed: Dec 13, 1996 Date of Patent: Oct 22, 2002 Assignee ...Patent Number. A Patent Number is assigned by the USPTO. A patent number may include up to eight characters and is formatted as follows: Utility : Patent …Seven-step U.S. patent search strategy . U.S. patent search assistance at a Patent and Trademark Resource Center ( PTRC) ... From the results page c lick on either the patent number or t he patent title to see the full -text of the patent (patents issued prior to 1970 will not have a full- text version, only a limited text entry). Click on the redTherefore, a search of all previous public disclosures, foreign patents and printed publications should be conducted. This tool was designed to help you get started. ... The searchable documents in this release contain all the pre-grant U.S. utility patent publications from 1/1/2001 to 4/30/2020.Preliminary U.S. patent search 1.12. Keyword search pitfalls 1.13. Search example 1.14. STEP 1 1.15. Step 1: Description of the invention 1.16. Answering the questions 1.17. STEP 2 1.18. Access Patent Public Search database 1.19. Patent Public Search database 1.20. ...Patent Public Search | USPTO - extended window - extended windowpatents granted between 1790 and 1975 are not keyword searchable, they are only retrievable by the patent number, the Cooperative Patent Classification (CPC) …NOTE: When citing a patent, make sure the Patent Number exactly follows the document, including all commas, spaces, and dashes. Examples of how to cite U.S. Patent 3,005,282 using five different citation styles: ACS (American Chemical Society) (3rd edition, 2006, page 310) Format: Patent Owner (s). Title.Enter the patent/published patent application number(s) you wish to search with a space between each one, as in this example: (“20180093696” “6707006” ”6392195”) Select the “PN” button: The search will execute with the .PN. searchable index applied to each item in the entire search string. Figure 8: PN button.UK patent search. You can search for patents in the UK using the Intellectual Property Office's (IPO): IPO also maintains separate lists for: To find new UK patent applications and changes to the patent register, check the IPO's patents journal. Businesses in Northern Ireland can get advice on IP matters, including patents, from Invest Northern ... Preliminary U.S. patent search 1.12. Keyword search pitfalls 1.13. Search example 1.14. STEP 1 1.15. Step 1: Description of the invention 1.16. ... Jul 2, 2002 · Official Gazette for Patents. The Official Gazette for Patents is published each Tuesday in electronic form only, and contains bibliographic (front page) text, a representative claim, and a drawing (if applicable) of each patent issued that week. Please note that the Official Gazette Notices are also included in each issue and provide important ... The following table displays annual, U.S. patent application and grant activity from 1790 to the present. Annual activity is determined based on the calendar year. Calendar Year. Utility Patent Applications (e) (inventions) Design Patent Applications. Plant Patent Applications. Search by Cooperative Patent Classifications (CPCs): These are commonly used to represent ideas in place of keywords, and can also be entered in a search term box. If you're searching for seat belts , you could also search for B60R22/00 to retrieve documents that mention safety belts or body harnesses. Aug 23, 2023 · 4. Click on “Search” button to search for relevant patents; 5. On the result page, click on the patent title or patent number then the patent fullt-ext will be appeared. Advanced Search. The Advanced Search page allows you to query the US patent full-text database using the command line search syntax. NOTE: When citing a patent, make sure the Patent Number exactly follows the document, including all commas, spaces, and dashes. Examples of how to cite U.S. Patent 3,005,282 using five different citation styles: ACS (American Chemical Society) (3rd edition, 2006, page 310) Format: Patent Owner (s). Title.Spend a few hours simply navigating the search tools and learning about the process. Make sure you record your search process as you move along. You will want to include the databases used, the date and time of your searches, the classes searched, and the materials retrieved. 2. Brainstorm relevant terms.Contains links to the various databases of the U.S. Patent and Trademark Office. Provides full-text of patents from 1976 to the present and full-page images for patents starting in 1790. Patent images can only be searched by issue date, patent number, and classification. PatFT, AppFT, Pub EAST, and Pub WEST will be retired in …Paul Fucito or Mandy Kraft. (571) 272-8400 or [email protected] or [email protected]. WASHINGTON – The United States Patent and Trademark Office (USPTO) today announced a new Patent Public Search tool that provides more convenient, remote, and robust full-text searching of all U.S. patents and published …Enter a patent number or published patent application number in the Quick Lookup query box and select “Search.” Utility Patent numbers must be entered as a minimum of …US United States Prior art keywords glyphosate acid limited agents spp Prior art date 2002-08-30 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires 2027-09-03 Application number US10/652,684 ...Patents issued between 1790 and 1975 can only be found through the USPTO search and require the patent number, U.S. classification, and issue date. The Google Patent Advanced Search permits users to search by inventor, patent number, assignee, classification number, topic, and date. This applies to patents issued before …Jul 2, 2002 · Official Gazette for Patents. The Official Gazette for Patents is published each Tuesday in electronic form only, and contains bibliographic (front page) text, a representative claim, and a drawing (if applicable) of each patent issued that week. Please note that the Official Gazette Notices are also included in each issue and provide important ... You can contact the central customer care and services of the DPMA (phone: +49 89 2195-1000). The search support database hotline (phone: +49 89 2195-3435) will be pleased to answer your questions on searches. Expert staff provide assistance in the search rooms of the DPMA in Munich and Berlin. There, all services offered by …Patents | USPTO. Patent basics. Patent process step-by-step. Search patents. Identify if you have a patent. Frequently asked questions (FAQs) Procedures …The Seven Step Strategy. Patent searching tools. Register today. To learn more information about patent searching, visit the search for patents page on the USPTO website. For questions about this event, contact the Texas Regional Office at [email protected] or 469-295-9000. This event is accessible to individuals with …Search results can be analyzed in PATENTSCOPE both statistically and graphically by clicking the Analysis icon located next to the results number in the results list view. Search results are grouped in the "Filters" and "Charts" analysis by top (most frequent) patent collection, applicant, inventor, IPC class, publication year, and filing year, with the top 10 …Nov 30, 2023 · Search our trademark database. Learn about the upcoming summary page feature, which allows you to see key information about an application or registration from your search results, without going to the Trademark Status and Document Retrieval (TSDR) system. Watch previous webinars to learn how to use the new system, and download webinar handouts ... United States Patent and Trademark Office . Patents. Patent Center; ... Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Application # All fields.First, the country code, which is two characters. For the United States, it is US. Second, the patent/publication number. Patent applications will include the publication year before the application number. Third, The WIPO Standard St. 16 kind code. The U.S. has used these since January 2, 2001. : US-PGPUB (U.S. pre-grant applications to 3/2001), USPAT (full-text U.S. patents to 1970, classification and patent number searching to 1790) and USOCR (OCR scanned pre-1970 U.S. patents). By default, all three databases are selected. Use the “ Databases ” button (red rectangle in Figure 1) to show or hide the menu options. Search queries Terms & conditions; Privacy Policy; Copyright; Hyperlinking Policy; Accessibility; Page last updated on: 26/06/201926/06/2019UK patent search. You can search for patents in the UK using the Intellectual Property Office's (IPO): IPO also maintains separate lists for: To find new UK patent applications and changes to the patent register, check the IPO's patents journal. Businesses in Northern Ireland can get advice on IP matters, including patents, from Invest Northern ...
Jan 17, 2023 - Virtual. Getting started with the Patent Public Search tool: An overview. On February 1, 2022, the USPTO released its new patent search tool, Patent Public Search. Join us January 17 to learn how to apply your search skills using this advanced, time-saving patent search tool. Dec 9, 2022 - Virtual.. Malawi broadcasting corporation
The length of search time depends on the complexity of the invention. Careful recording of the search process (databases used, date and time of search, classes searched, and patents/published patent applications retrieved) is important. STEP 1: 1 Brainstorm Terms Describing Your Invention. Begin by writing down a brief, accurate description of ...Patents issued between 1790 and 1975 can only be found through the USPTO search and require the patent number, U.S. classification, and issue date. The Google Patent Advanced Search permits users to search by inventor, patent number, assignee, classification number, topic, and date. This applies to patents issued before …Preliminary U.S. patent search 1.12. Keyword search pitfalls 1.13. Search example 1.14. STEP 1 1.15. Step 1: Description of the invention 1.16. Answering the questions 1.17. STEP 2 1.18. Access Patent Public Search database 1.19. Patent Public Search database 1.20. ... Basic Search has a Quick Lookup option for fast searching with a patent number or published patent application number. It also has an option for two search query text boxes, allowing up to two terms to be searched using a Boolean set operator (AND, OR, NOT). It offers a limited number of fields (searchable indexes). To run a Basic Search: 1 ... Search for a patent application. Search by application number, patent number, PCT number, publication number or international design registration number. Application #. Russian Federation. 26,924. 🡓13.1%. In 2022, China’s IP office received around 1.62 million patent applications. It was followed by the offices of the US, Japan, the Republic of Korea and the European Patent Office. The top 10 offices accounted for 91.6% of the world total in 2022. Note: * EPO is the European Patent Office.TAF REPORT. ISSUE DATES AND PATENT NUMBERS SINCE 1836: BY YEAR. -- 1836 TO 2001. BY ISSUE DATE -- 1963 - 12/1994. (With addendum for issue dates from 1995 - 2001) April 2002. U.S. PATENT AND TRADEMARK OFFICE INFORMATION PRODUCTS DIVISION / TAF BRANCH PK3 - SUITE 441, WASHINGTON, DC 20231 TEL (703) 306 …Nov 30, 2023 · Search our trademark database. Learn about the upcoming summary page feature, which allows you to see key information about an application or registration from your search results, without going to the Trademark Status and Document Retrieval (TSDR) system. Watch previous webinars to learn how to use the new system, and download webinar handouts ... Dec 19, 2023 · Watch on. Published on: December 19, 2023 17:30. This microtutorial for Patent Public Search walks you through the steps of finding U.S. patents and published patent applications from particular inventors. Other ways to view this video. Watch it on YouTube. Justia Patents Producing Aural Effects By Stimulation US Patent for Method and device for implementing the radio frequency hearing effect Patent (Patent # 6,470,214) ... Patent number: 6470214 Type: Grant Filed: Dec 13, 1996 Date of Patent: Oct 22, 2002 Assignee ...3 days ago · Plant Patents: United States patent. Plant. 1976-1993 *VAC (United States. Patent Office. [Specifications and drawings of patents] Plant pat.) Plant Patents: United States patent. Plant. 1994-current: JSM 99-245: Reissue Patents: CDR File (Corrections, Disclaimers, Reissues). 1838-1995 *XFR-2: Defensive Publications: Defensive Publications ... Apr 25, 2011 · Online patent tools. Locate online patent services and information. Patent Center. Single interface replacement for EFS-Web, Private PAIR and Public PAIR. Electronic Business Center; Check application status. Check patent application status with Patent Center. Fees and payment. Pay maintenance fees and learn more about filing fees and other ... Enter a patent number or published patent application number in the Quick Lookup query box and select “Search.” Utility Patent numbers must be entered as a minimum of … United States Patent and Trademark Office . Patents . Patent Center; Search patents; Patent applications search; Check private filing status; Check public filing status; How to conduct a preliminary U.S. patent search: A step-by-step strategy – provides a web-based video tutorial (36 minutes). The Multi-Step Patent Search Strategy – outlines a suggested procedure for patent searches. ... You can search by application number, patent number, PCT number, publication number or international design registration ....