Inventor · disambiguated record
Erwin Hoffmann
Also filed as: HOFFMANN ERWIN
10 granted patents·1 pending application·148 citations·filing 1975–2001
90Inventor score
Top patents by PatentIndex Score
11 records- 0172US4804425AProcess and laminator for the continuous production of laminates of foam with facingsBAYER AG·Filed 1987·Granted Feb 14, 1989·33 cites·13 claims
- 0263US4255105AEquipment for the continuous production of foam boardsBAYER AG·Filed 1979·Granted Mar 10, 1981·18 cites·9 claims
- 0361US5703342ATemperature control method using empirically determined characteristicsBODENSEEWERK PERKIN ELMER CO·Filed 1996·Granted Dec 30, 1997·37 cites·22 claims
- 0459US4264291AEquipment for the continuous production of foam boardsBAYER AG·Filed 1979·Granted Apr 28, 1981·16 cites·2 claims
- 0548US4527442AManual transmission shifting mechanismFORD MOTOR CO·Filed 1982·Granted Jul 9, 1985·10 cites·5 claims
- 0641US4846099AApparatus for applying a foam-forming flowable reaction mixture to a substrateBAYER AG·Filed 1988·Granted Jul 11, 1989·9 cites·9 claims
- 0740US5619041AAtomic absorption spectrometer for measuring the mercury concentration in a sampleBODENSEEWERK PERKIN ELMER CO·Filed 1995·Granted Apr 8, 1997·11 cites·12 claims
- 0839US4270889AEquipment for the continuous production of foam boardsBAYER AG·Filed 1979·Granted Jun 2, 1981·7 cites·8 claims
- 0938US4025470AProcess for the production of flame-resistant, hard polyurethane foamsBAYER AG·Filed 1975·Granted May 24, 1977·4 cites·8 claims
- 1033US4931480AProcess for the preparation of polyurethane foamsBAYER AG·Filed 1989·Granted Jun 5, 1990·3 cites·4 claims
- 1131US2004045497A1Analysis method for detecting three-dimensional trace element distribution patterns and corresponding device for carrying out this methodFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →