CLAIMS®
U.S. Patents Database
The most extensive online, text-searchable collection of U.S. patents.
The CLAIMS® U.S. Patents Database contains references to more than 3 million patents granted in the United States since 1950. Known for our broad coverage, in-depth indexing of chemical patents and extensive standardization of company names, the database represents the largest collection of clean and reliable, text-searchable U.S. patent references available in an online database.
The CLAIMS® U.S. Patents Database includes:
- All chemical patents since 1950
- All utility patents since 1963
- Complete collection from 1971-74, including 96,000 patents not found in USPTO online records or other files for that time period
- All design patents since December 1976
- All plant patents since December 1976
Each record in the database provides:
- Patent title, patent number, issue date
- Assignee names(s)
- Inventor name(s)
- Bibliographic data including the U.S. Patent Office Classifications and International Patent Classifications
- Main claim from the Official Gazette
For patents issued since 1971, database records also include all data from the front page of the patent (application data, priority application data, addresses of inventors, etc.) plus abstract from the front page of the patent and all patent claims.
Most current data is received from the U.S. Patent Office in machine-readable form. Portions of this data are then edited by IFI for accuracy and consistency, and enhanced for better search and retrieval in a number of ways:
ENHANCED PATENT TITLES
Title expansions save time by identifying the novelty and uses of the invention, and afford easy screening of search results by title.
ASSIGNEE STANDARDIZATION AND ERROR CORRECTION
IFI's computerized and manual editing processes help you detect assignee and other patent information that otherwise might be missed.
ANNUALLY UPDATED U.S. CLASSIFICATIONS
All records are updated as of December of the prior year, ensuring the information you receive from IFI is current and complete.
INTERNATIONAL PATENT CLASSIFICATION
For all records.
ANTICIPATED DATE OF EXPIRATION
This field indicates when a patent expires — a common source of confusion based on the new USPTO patent term requirements.
IFI updates the database weekly, providing online access to patent references within one week after issue of the patent.
- The CLAIMS®
U.S. Patents Database is available from the following
online vendors using the file numbers indicated after the vendor name:
Dialog — 340 - STN — IFIPAT
- Questel — IFIPAT
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