Assignee
US LIBRARIAN OF CONGRESS
3 granted patents·84 citations·filing 1974–1981
Technology mixD21H3
Top patents by PatentIndex Score
3 records- 0189US3969549AMethod of deacidifying paperUS LIBRARIAN OF CONGRESS·Filed 1974·Granted Jul 13, 1976·42 cites·9 claims
- 0271US3939091AComposition for use in deacidification of paperUS LIBRARIAN OF CONGRESS·Filed 1975·Granted Feb 17, 1976·25 cites·6 claims
- 0347US4401810AMethod of stabilizing felted cellulosic sheet material with an alkali metal borohydrideUS LIBRARIAN OF CONGRESS·Filed 1981·Granted Aug 30, 1983·17 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when US LIBRARIAN OF CONGRESS files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →