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Navigating the USPTO Patent Assignment Search: A Comprehensive Guide

By Babak Akhlaghi on March 28, 2024. The United States Patent and Trademark Office (USPTO) is a pivotal institution in the realm of intellectual property, playing a crucial role in protecting the innovations that fuel progress. Among its varied services, the USPTO patent assignment search stands out as an essential resource for individuals and organizations navigating the intricacies of patent ownership and assignments. This guide delves deep into the functionality and significance of the USPTO’s patent assignment search tool, shedding light on its utility and operation for all stakeholders involved in the patenting process.

Understanding Patent Assignments

To fully appreciate the value of the USPTO assignment search, one must first understand what a patent assignment entails. Essentially, a patent assignment is the transfer of an owner’s rights, title, and interest in a patent or patent application to another entity or individual. This process can occur through the sale of the patent, a transfer of ownership during a business transaction, or through inheritance. The completion of an assignment confers upon the new owner the exclusive rights to the patent, including the authority to prevent others from exploiting the patented invention.

The Role of the USPTO Patent Assignment Search

Central to the USPTO’s offerings is the USPTO assignment database, a comprehensive repository that records all patent assignment information from August 1980 to the current day. This database becomes indispensable for verifying the present ownership of a patent or patent application whenever the USPTO processes pertinent assignment details.

For inventors, legal professionals, and corporations alike, the USPTO assignment search is vital for various reasons. It facilitates due diligence efforts prior to the acquisition or licensing of patents, aids in the resolution of patent right disputes, and ensures adherence to assignment recording protocols.

Utilizing the USPTO Patent Assignment Search

Thanks to the user-friendly interface of the USPTO assignment search tool , users can effortlessly access detailed records of patent assignments. This tool, part of the broader USPTO Electronic Patent Assignment System (EPAS), allows searches by multiple criteria such as patent number, assignor and assignee names, publication numbers, and reel/frame numbers. Results from this assignee search provide comprehensive details about each assignment, including participant names, assigned patents or applications, and the date of assignment.

The USPTO patent assignment search tool is far more than a mere database; it serves as a critical access point to the legal and commercial dimensions of patenting. By facilitating access to exhaustive records of US patent assignments, the USPTO empowers stakeholders across the innovation landscape to make well-informed decisions. This, in turn, helps in averting disputes and promoting the seamless transfer of technology. Whether you are conducting a US patent assignment search, exploring the USPTO assignment database, or utilizing the USPTO trademark assignment search function, the USPTO’s resources are invaluable for anyone involved in the intricate world of patents and trademarks.

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  • API Catalog

Patent Assignment Search

1.4 | patents.

Use this API to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. For API, please use Chrome or Safari browser.

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Patent assignment search api (beta).

Use this API to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. For API, please use Chrome or Safari browser.

About this Dataset

Access this data.

Table representation of structured data
Title Patent Assignment Search API (beta)
Description Use this API to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. For API, please use Chrome or Safari browser.
Modified 2021-12-10
Publisher Name Open Data Portal/Developer Hub Team
Contact mailto:
Keywords uspto , patent , assignment , search , ownership , xml , api

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An official website of the United States government

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

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United States Patent and Trademark Office - An Agency of the Department of Commerce

One or more systems affected by planned maintenance

The USPTO will perform network maintenance that will impact access to most public-facing systems  from midnight- 5 a.m. ET on Thursday, May 2 .

Affected systems will be unavailable during this period and include:

  • Patent Center
  • Patent Examination Data System (PEDS)
  • Trademark Status and Document Retrieval (TSDR)
  • Patent Public Search Database (PPUBS)
  • Global Dossier
  • Assignment Center
  • Office of Enrollment and Discipline Patent Practitioner Home Page
  • Fees Self-Service Portal
  • Trademark Electronic Application System (TEAS)
  • Trademark Electronic Application System International (TEASi)
  • Trademark Search
  • Patent Assignment Search
  • Trademark Assignment Search
  • Patent Center eOffice Action notifications will begin by 10 a.m. ET  

The  USPTO website  should remain available.

​Patent Public Search (PPUBs) Maintenance

The USPTO will perform maintenance on PPUBs from midnight-2 a.m. ET on Saturday, May 4.  

During this deployment period, PPUBs will be unavailable.

Server Maintenance 

Credit card payment maintenance.

Due to third-party system maintenance activities, credit/debit card payments will not be accepted from 6-10 p.m. ET on Saturday, May 4.  

During the maintenance period, the following USPTO storefronts will be unable to accept credit/debit card payments:

    • Patent Center

    • Patent Trial and Appeal Case Tracking System (P-TACTS)

    • Patent Maintenance Fees Storefront (FPNG)

    • Trademark Electronic Application System (TEAS)

    • Trademark Electronic Application System International (TEASI)

    • Electronic System for Trademark Trials and Appeals (ESTTA)

    • Assignment Center (IPAS)

    • Office of Enrollment and Discipline Customer Interface (OEDCI)

    • Certified Copy Center (CCC)

Customers with an already established USPTO Deposit Account or Electronic Funds Transfer (EFT) Account may still pay using one of these payment methods during the maintenance window.

If you are unable to wait until the maintenance activity has concluded to pay a fee, the following alternative options are available:

Patent Customers: For more information about filing documents during an outage, please visit:  https://www.uspto.gov/patents-application-process/filing-online/filing-documents-during-outage. 

If you require assistance with the online fee payment management system, please contact the USPTO Contact Center via the following telephone numbers: 

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Support for the online fee payment management system, and USPTO.gov accounts, is available Monday through Friday from 8:30 a.m. to 8 p.m. ET (except federal holidays).

PTAB Customers:  If your deadline is today for the petition filing and/or other associated documents to a pending America Invents Act (AIA) case and you cannot file electronically via the Patent Trial and Appeal Case Tracking System, (P-TACTS) you may use an alternative filing method. Please visit the PTAB-E2E FAQ page:  P-TACTS FAQs (uspto.gov)  and see A2 for information concerning your America Invents Act (AIA) petition filing and/or document filing using P-TACTS alternative filing methods. If you have any questions, contact PTAB during normal business hours of 8:30 a.m. to 5 p.m., ET by telephone at 571-272-7822 or email at  [email protected] .

Trademark Customers:  Filing deadlines that fall on a Saturday extend the filing deadline to the next business day. Please try filing again after the maintenance ends.  If you have any questions, contact the TEAS Team by email at  [email protected] .

TTAB Customers:  Please visit the TTAB Outage Page:  https://www.uspto.gov/trademarks/ttab/filing-ttab-documents-during-outage  for information concerning Trademark Trial and Appeal Board (TTAB) alternative filing methods. If you have any questions, contact the TTAB Assistance Center during normal business hours by telephone at 571-272-8500 or email  [email protected] .

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The USPTO will perform routine maintenance on the Trilateral Dossier Access (TDA) systems from midnight-5:30 a.m. ET on Tuesday, May 7.

During the maintenance period, TDA will not be available.

P-OA2XML Maintenance

The USPTO will perform routine maintenance on P-OA2XML from midnight-5:30 a.m.ET on Tuesday, May 7.

During the maintenance period, DOCX and XML downloads will not be available in Private PAIR and Patent Center.

Publication Site for Issued and Published Sequences (PSIPS) Maintenance

The USPTO will perform routine maintenance on PSIPS systems from midnight-5:30 a.m. ET on Tuesday, May 7.

During the maintenance period, PSIPS will be unavailable.

Users should refrain from attempting to submit new search requests during the maintenance period.

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Additional information about this page

IMAGES

  1. Various Features of USPTO Trademark Search Database

    uspto assignment database search

  2. Various Features of USPTO Trademark Search Database

    uspto assignment database search

  3. A Complete Guide to USPTO Patent Assignment Search

    uspto assignment database search

  4. USPTO Rolls Out Cost Saving Updates to the Patent Assignment Search

    uspto assignment database search

  5. Patent Databases: 11 Best Free and Paid Search Platforms

    uspto assignment database search

  6. Various Features of USPTO Trademark Search Database

    uspto assignment database search

VIDEO

  1. Database Assignment 2

  2. INFO 5050 Database Search

  3. Brian Bear's Presentation

  4. Planning your Research

  5. From Question to Keywords

  6. What is the USPTO's New Trademark Search System?

COMMENTS

  1. Patents Assignments: Change & search ownership

    Learn how to transfer or change the name of your patent ownership with Assignment Center. Search the database of recorded Patent Assignment information from 1980 to the present.

  2. United States Patent and Trademark Office

    United States Patent and Trademark Office. Select one. Enter assignment information in any field or combination of fields. The number assigned when a patent application is filed at USPTO. The person, group of persons, or organization that recieved ownership rights of the patent application or patent. The nature of the transfer of ownership of ...

  3. Assignment Center

    The U.S. Patent and Trademark Office (USPTO) is streamlining the process for recording assignments and other documents relating to interests in patents and trademarks. Our new system will guide you through the steps of making a submission, provide easier editing capabilities, and allow you to see the progression and status of your submission.

  4. USPTO Assignments on the Web

    Home | Site Index | Search | Guides | Contacts | eBusiness | eBiz alerts | News | Help: Assignments on the Web ... The database contains all recorded Trademark Assignment information from 1955 to September 11, 2024 . ... Trademark Assignments recorded prior to 1955 are maintained at the National Archives and Records Administration. If you have ...

  5. Assignment Center

    If I have a question about filing an assignment document, where can I get help? expand_more. You may contact the Assignment Recordation Branch Customer Service Desk at 571-272-3350 from 8:30 a.m. to 5 p.m. ET. You may email questions about electronic assignment filing to [email protected].

  6. Assignment Center

    Assignment Center is the USPTO's online system for filing and managing patent and trademark assignments. Learn how to use it with our tutorial videos and FAQs.

  7. USPTO Assignments on the Web

    Assignments on the Web. Select One. Patent Assignment. Trademark Assignment. If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6.

  8. Online patent tools

    Assignment Center makes it easier to transfer ownership or change the name on your patent or trademark registration. See our how-to guides on using Assignment Center for patents and trademarks. If you have questions, email [email protected] or call customer service at 800-972-6382.

  9. Search by assignee name and location

    Published on: December 19, 2023 17:34. This microtutorial for Patent Public Search will show you how to locate U.S. patents and published patent applications assigned to particular companies and other entities. You can search by assignee name, city, and state. Other ways to view this video.

  10. Search for patents

    Public Search Facility. The United States Patent and Trademark Office (USPTO) Public Search Facility located in Alexandria, VA provides the public access to patent and trademark information in a variety of formats including on-line, microfilm, and print. Trained staff are available to assist public users.

  11. USPTO Assignments on the Web

    Assignor Name: Assignor Index: Assignee Name: Assignee Index: Assignor/Assignee Name: The database contains all recorded Patent Assignment information from August 1980 to August 28, 2024 . If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6.

  12. Assignment Center

    Assignment Center Trademark Training Guide (PDF) Signing in to Assignment Center (YouTube) Starting a trademark assignment request in Assignment Center (YouTube) Resubmitting a trademark request in Assignment Center (YouTube) Receive updates from the USPTO. Enter your email to subscribe or update your preferences.

  13. Patent Center

    Patent Center is the official platform for filing and managing patent applications online at the USPTO. Learn how to use its features and access public patent data.

  14. A Complete Guide to USPTO Patent Assignment Search

    This database becomes indispensable for verifying the present ownership of a patent or patent application whenever the USPTO processes pertinent assignment details. For inventors, legal professionals, and corporations alike, the USPTO assignment search is vital for various reasons. It facilitates due diligence efforts prior to the acquisition ...

  15. Patent Public Search

    Access the full-text database of U.S. patents and publications with Patent Public Search. Search by various criteria and get updates from USPTO.

  16. Patent Assignment Dataset

    Patent Assignment Dataset. The USPTO allows parties to record assignments of patents and patent applications to, as much as possible, maintain a complete history of claimed interests in a patent. The USPTO also permits recording of other documents that affect title (such as certificates of name change and mergers of businesses) or are relevant ...

  17. Patent Public Search Basic

    Patent or Publication number. For example: 0123456 or 20210123456. Search.

  18. Search our trademark database

    Want to watch a search webinar? See our federal trademark searching webinar series to register for upcoming sessions, or watch recordings of previous webinars. Log into your USPTO.gov account for a better search experience. Logging in using the Sign in link in the top right corner helps you avoid errors when the system is handling heavy traffic.

  19. Patent Assignment Search

    Patent Assignment Search. 1.4 | Patents Use this API to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. ... Share your work with the USPTO Open Data Community - use the ...

  20. API Services for Trademark Assignment Search

    Use the mechanisms below to retrieve trademark assignment information from USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. Contact the developer. quickLookup: Perform a quick lookup.

  21. Patent Assignment Search API (beta)

    Table representation of structured data; Title: Patent Assignment Search API (beta) Description: Use this API to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results.

  22. API Services for Patent Assignment Search

    Use the mechanisms below to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. Contact the developer. quickLookup: Perform a quick lookup.

  23. One or more systems affected by planned maintenance

    The USPTO will perform network maintenance that will impact access to most public-facing systems from midnight-5 a.m. ET on Thursday, May 2. Affected systems will be unavailable during this period and include: Patent Center; Patent Examination Data System (PEDS) Trademark Status and Document Retrieval (TSDR) Patent Public Search Database (PPUBS ...