Inventor · disambiguated record
Frank Kropfgans
Also filed as: KROPFGANS FRANK
13 granted patents·1 pending application·416 citations·filing 1995–2013
93Inventor score
Top patents by PatentIndex Score
14 records- 0194US5629400AWater-based organopolysiloxane-containing compositions, processes for their preparation and their useHUELS CHEMISCHE WERKE AG·Filed 1995·Granted May 13, 1997·98 cites·17 claims
- 0292US6727375B2Apparatus and process for preparing substantially halogen-free trialkoxysilanesDEGUSSA·Filed 2002·Granted Apr 27, 2004·36 cites·16 claims
- 0390US6177584B1Process for neutralizing and reducing residual halogen contents in alkoxysilanes or alkoxysilane-based compositionsDEGUSSA·Filed 1999·Granted Jan 23, 2001·54 cites·18 claims
- 0488US6150551AProcess for preparing low-chloride or chloride-free alkoxysilanesDEGUSSA·Filed 1999·Granted Nov 21, 2000·44 cites·20 claims
- 0585US5527937AProcess for preparing hydrogenalkoxysilanesHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Jun 18, 1996·35 cites·6 claims
- 0684US5654459AProcess for preparing alkylhydrogenchlorosilanesHUELS CHEMISCHE WERKE AG·Filed 1996·Granted Aug 5, 1997·33 cites·19 claims
- 0783US6242628B1Process for preparing alkoxysilanesDEGUSSA·Filed 1999·Granted Jun 5, 2001·30 cites·18 claims
- 0883US5616762AProcess for the preparation of 3-halo-and pseudohalo-alkylsilane estersHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Apr 1, 1997·34 cites·9 claims
- 0979US6423858B1Manufacturing process for aminoalkyl silanesDEGUSSA·Filed 2001·Granted Jul 23, 2002·11 cites·12 claims
- 1075US6750361B2Cleavage of cyclic organosilanes in the preparation of aminofunctional organoalkoxysilanesDEGUSSA·Filed 2002·Granted Jun 15, 2004·8 cites·11 claims
- 1173US5646325AProcess for the preparation of 3-acryloyloxypropylalkoxysilanesHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Jul 8, 1997·17 cites·19 claims
- 1272US5536860AProcess for preparing aminopropylalkoxysilanes in the presence of shaped polymeric rhodium complex catalysts and their useHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Jul 16, 1996·16 cites·9 claims
- 1349US2011150739A1Method for removing boron-containing impurities from halogen silanes and apparatus for performing said methodEVONIK DEGUSSA GMBH·Filed 2009·Application pending·0 cites
- 1447US9593021B2Method for processing finely divided solids during production of chlorosilanesMARINAS PEREZ JANAINA·Filed 2013·Granted Mar 14, 2017·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →