It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Patent and Trademark Resource Center: U.S. Patents
If you are truly new to the concept of "intellectual property" (patents, trademarks, copyright, and trade secrets), you should complete this half-hour assessment. It will help you identify unprotected assets that you may not even know you have.
This Guide aims to assist users in searching for technology information using patent documents, a rich source of technical, legal and business information presented in a generally standardized format and often not reproduced anywhere else. Though the Guide focuses on patent information, many of the search techniques described here can also be applied in searching other non-patent sources of technology information.
The Cooperative Patent Classification (CPC) effort is a joint partnership between the United States Patent and Trademark Office (USPTO) and the European Patent Office (EPO) where the Offices have agreed to harmonize their existing classification systems (European Classification (ECLA) and United States Patent Classification (USPC) respectively) and migrate towards a common classification scheme.) This interactive web page is easy to navigate and includes all the classification group definitions.
Index and profiles of organizations that produce, process and/or archive grey literature (tech reports, unpublished conference papers, etc.). Resources appear within categories derived from the COSATI (American) and SIGLE (European) Classification Systems.
The Inventors Assistance Center (IAC) provides patent information and services to the public. The IAC is staffed by former supervisory patent examiners, experienced primary patent examiners, various intellectual property specialists, and attorneys who can answer general questions concerning patent examining policy and procedure.
Hours: Monday – Friday, 8:30 AM – 8:00 PM (ET), except federal holidays
Phone: 800-PTO-9199 (800-786-9199)
The staff in the Application Assistance Unit (AAU) is trained to assist with a broad range of questions and issues pertaining to pre-examination processing of patent applications by the Office of Patent Application Processing (OPAP) and the post-examination processing of patent applications by the Office of Data Management (ODM).
The Patent Electronic Business Center (EBC) assists customers with filing their electronic patent application submissions via the Electronic Filing System (EFS-Web) and with the review of patent applications in Public and Private PAIR, as well as supporting customers while Searching the Patent and Application Full-Text Image Databases.
Hours: 6:00 a.m. to 12:00 midnight, Eastern Time, Monday through Friday
Telephone: 1-866-217-9197 (toll-free)
All documents originate from the United States Patent and Trademark Office (USPTO), the European Patent Office (EPO), and the World Intellectual Property Organization (WIPO). Includes OCR full-text of U.S. patents 1790-1976, and native full-text of U.S. patents since 1976 and EPO and WIPO patents from 1978. With Google's Prior Art Finder, you can find documents related to a particular patent application or grant.
Includes PatFT (granted U.S. patents), AppFT (pending U.S. patent applications), Public PAIR (Patent Application Information Retrieval) and Assignment Database, as well as links to other helpful tools.
Provides a full description of the class for plants which are patentable under Title 35 U.S. Code, Section 161, which provides for the granting of a patent to whoever invents or discovers and asexually reproduces any distinct and new variety of plant, including cultivated sports, mutants, hybrids, and newly found seedlings other than a tuber propagated plant or a plant found in an uncultivated state.