Inventor · disambiguated record
Bengt O. Frieberg
Also filed as: FRIEBERG BENGT O
13 granted patents·330 citations·filing 1977–1987
94Inventor score
Top patents by PatentIndex Score
13 records- 0194USD269852SLock washerFRIEBERG BENGT O·Filed 1981·Granted Jul 26, 1983·39 cites·1 claims
- 0292USD276310SHex transfer washerFRIEBERG BENGT O·Filed 1982·Granted Nov 13, 1984·34 cites·1 claims
- 0388US4538313AMethod of forming a joined pair of wedge-action lock washersNOBEX AB·Filed 1980·Granted Sep 3, 1985·37 cites·4 claims
- 0487US4134438ALocking device for threaded fastenersFRIEBERG BENGT O·Filed 1977·Granted Jan 16, 1979·70 cites·10 claims
- 0582USD263679SReversible lock washerFRIEBERG BENGT O·Filed 1980·Granted Apr 6, 1982·18 cites·1 claims
- 0681USD268566SReversible lock washerFRIEBERG BENGT O·Filed 1981·Granted Apr 12, 1983·17 cites·1 claims
- 0778USD278883SReversible friction-ring washerFRIEBERG BENGT O·Filed 1982·Granted May 21, 1985·15 cites·1 claims
- 0878US4377361AReversible lock washerFRIEBERG BENGT O·Filed 1980·Granted Mar 22, 1983·41 cites·6 claims
- 0976USD263791SLock washerFRIEBERG BENGT O·Filed 1980·Granted Apr 13, 1982·14 cites·1 claims
- 1071USD263792SLock washerFRIEBERG BENGT O·Filed 1980·Granted Apr 13, 1982·11 cites·1 claims
- 1166USD273562STransfer washerFRIEBERG BENGT O·Filed 1982·Granted Apr 24, 1984·9 cites·1 claims
- 1252US4793752ADrive-head lock washerPERMA TITE AB·Filed 1987·Granted Dec 27, 1988·20 cites·8 claims
- 1352USD276309SLock washer assemblyFRIEBERG BENGT O·Filed 1982·Granted Nov 13, 1984·5 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Bengt O. Frieberg files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →