Inventor · disambiguated record
Gerhard Ullmann
Also filed as: ULLMANN GERHARD
6 granted patents·124 citations·filing 1978–1991
84Inventor score
Top patents by PatentIndex Score
6 records- 0180US4211594AJoining together shaped bodies of polytetrafluoroethyleneSIGRI ELEKTROGRAPHIT GMBH·Filed 1978·Granted Jul 8, 1980·43 cites·1 claims
- 0280US4197149AMethod for joining together shaped bodies of polytetrafluoroethyleneSIGRI ELEKTROGRAPHIT GMBH·Filed 1978·Granted Apr 8, 1980·42 cites·14 claims
- 0351US5211220ATube for a shell and tube heat exchanger and process for the manufacture thereofSIGRI GREAT LAKES CARBON GMBH·Filed 1989·Granted May 18, 1993·15 cites·5 claims
- 0442US4941692AAdhesive connection of tubes formed of carbon or graphiteSIGRI GMBH·Filed 1989·Granted Jul 17, 1990·11 cites·7 claims
- 0542US4921283AConnection of carbon or graphite tubesSIGRI GMBH·Filed 1989·Granted May 1, 1990·11 cites·6 claims
- 0625US5192411AElectrode for electrochemical reactorsHOECHST AG·Filed 1991·Granted Mar 9, 1993·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →