Inventor · disambiguated record
Allan W. Opsahl
Also filed as: OPSAHL ALLAN W
7 granted patents·407 citations·filing 1982–1986
89Inventor score
Files withBOEING CO7
Top patents by PatentIndex Score
7 records- 0194US4473201ACanopy-type aircraft cargo door and actuating mechanismsBOEING CO·Filed 1982·Granted Sep 25, 1984·111 cites·15 claims
- 0293US4576347AFlap torque tube slot sealBOEING CO·Filed 1984·Granted Mar 18, 1986·91 cites·3 claims
- 0392US4510714APowered outward-opening cargo doorBOEING CO·Filed 1982·Granted Apr 16, 1985·113 cites·8 claims
- 0480US4601446AAircraft door counterbalance systemBOEING CO·Filed 1983·Granted Jul 22, 1986·49 cites·14 claims
- 0549US4589613ACounterbalanced hinge assemblyBOEING CO·Filed 1984·Granted May 20, 1986·18 cites·25 claims
- 0643US4479623ASpring operated counterbalance hinge assembly for aircraft doorsBOEING CO·Filed 1982·Granted Oct 30, 1984·15 cites·12 claims
- 0737US4726146AHold-open lockBOEING CO·Filed 1986·Granted Feb 23, 1988·10 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Allan W. Opsahl 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 →