Intellectual Property Research: Searching for Copyrights

Database of works registered and copyright documents recorded with the U.S. Copyright Office since January 1, 1978.

New pilot database with the same coverage as the Official Public Catalog (1978-present) but more advanced search options.

Database of contacts and representatives for copyright holders.

1978-present. Advanced search supports field searching.

1978-present. Advanced search supports field searching.

Circular containing guidance on how to research copyright ownership.

Guide to searching the Copyright Office Catalog online, which includes registrations and recorded documents from 1978 to the present.

Guide on how to search copyright records of the Copyright Office and Library of Congress.

Information on how to research pre-1978 copyright records by visiting the Copyright Office's Copyright Records Reading Room.

The Internet Archive hosts scanned copies of the Catalog of Copyright Entries, an annual publication containing registrations and renewals from 1891-1978.

Google has digitized the Catalog of Copyright Entries from 1922-1977. This page contains search tips, a tool to search all available volumes, and a list of volumes to browse.

Finding aid created by John Mark Ockerbloom that can be used to view pre-1978 copyright registrations.

Database of US Copyright Office copyright renewal records received between 1950 - 1992 and for books published in the US between 1923 - 1963.