Database Details

USPTO Patent Database: Issued Patents

Type:   Index
Description:   The database includes information about all US patents (including utility, design, reissue, plant patents and SIR documents) from the first patent issued in 1790 to the most recent patent issue week.

The data included in the patents appear as printed on the patent on the day of issue. Changes to patent documents contained in Certificates of Correction and Re-examinations Certificates are not included in the searchable full-text of the patent databases, but are available as additional full-page images at the end of each patent's linked full-page images.

Some patents and images have been excluded from the database. For more information, see the Patent Full-Text Database Contents at http://patft.uspto.gov/help/contents.htm
Publisher:   United States Patent and Trademark Office (USPTO)
Creator:   United States Patent and Trademark Office (USPTO)
Search Hints:   Full-text patents from 1976 to the present only are included in this database.

Author searches will find inventors.

Year searches are done in All Fields.

ISSN and ISBN searches are irrelevant in this database.

Truncation is not supported in phrase searches. Truncation on short words can produce zero hits. Try lengthening the stem of the word you're trying to truncate.
Category/Subcategory:   Computer Sciences / Database Design and Management