Inventor · disambiguated record
Stefan Penninger
Also filed as: PENNINGER STEFAN
13 granted patents·87 citations·filing 1983–2006
90Inventor score
Top patents by PatentIndex Score
13 records- 0193US4480110AProcess for the preparation of urethanesBAYER AG·Filed 1984·Granted Oct 30, 1984·31 cites·5 claims
- 0267US4675437ACycloaliphatic triisocyanatesBAYER AG·Filed 1985·Granted Jun 23, 1987·8 cites·2 claims
- 0364US4879409ACycloaliphatic diisocyanates, optionally in the form of isomeric mixtures and a process for their preparationBAYER AG·Filed 1987·Granted Nov 7, 1989·7 cites·5 claims
- 0462US5399736AProcess for the preparation of highly pure aromatic diurethanes and/or polyurethanesBAYER AG·Filed 1992·Granted Mar 21, 1995·7 cites·17 claims
- 0561US4879408ACycloaliphatic diisocyanates optionally in the form of isomer mixtures and a process for their productionBAYER AG·Filed 1987·Granted Nov 7, 1989·6 cites·5 claims
- 0659US8110704B2Process for the production of stable polymersBARNES JAMES MICHAEL·Filed 2006·Granted Feb 7, 2012·1 cites·5 claims
- 0750US4786751ADissocyanates, diisocyanate mixtures and a process for their productionBAYER AG·Filed 1985·Granted Nov 22, 1988·7 cites·10 claims
- 0847US4603189ATriisocyanates and a process for their preparationBAYER AG·Filed 1985·Granted Jul 29, 1986·6 cites·7 claims
- 0941US5552507ADiisocyanates and processes for their production and useBAYER AG·Filed 1995·Granted Sep 3, 1996·6 cites·4 claims
- 1040US4593117AProcess for the preparation of N- and O-substituted diurethanes and/or polyurethanesBAYER AG·Filed 1984·Granted Jun 3, 1986·5 cites·13 claims
- 1136US6486346B1Process for the preparation of durene diisocyanateBAYER AG·Filed 1999·Granted Nov 26, 2002·1 cites·13 claims
- 1234US4720582ADiamines and a process for their productionBAYER AG·Filed 1983·Granted Jan 19, 1988·2 cites·8 claims
- 1329US5663439AProcess for the preparation of toluidinesBAYER AG·Filed 1996·Granted Sep 2, 1997·0 cites·4 claims
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