Inventor · disambiguated record
John F. Langenbach
Also filed as: LANGENBACH JOHN · LANGENBACH JOHN F
3 granted patents·1 pending application·76 citations·filing 1983–2005
74Inventor score
Top patents by PatentIndex Score
4 records- 0174US4563110AShoring apparatus and methodPERMA JACK COMPANY·Filed 1983·Granted Jan 7, 1986·30 cites·41 claims
- 0257US4679353ASecurity doorLANGENBACH GEORGE·Filed 1986·Granted Jul 14, 1987·25 cites·15 claims
- 0343US4602460AWater powered gutter and downspout cleaning apparatusLANGENBACH JOHN F·Filed 1984·Granted Jul 29, 1986·21 cites·4 claims
- 0437US2008228132A1Valve for Transcutaneous Access to Existing Blood Vessel or FistulaLANGENBACH JOHN·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →