Assignee
HOECHST RES & TECH GMBH & CO
DE·19 granted patents·529 citations·filing 1996–1999
Top patents by PatentIndex Score
19 records- 0193US6197147B1Process for continuous production of membrane-electrode compositesHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Mar 6, 2001·146 cites·28 claims
- 0289US6183898B1Gas diffusion electrode for polymer electrolyte membrane fuel cellsHOECHST RES & TECH GMBH & CO·Filed 1999·Granted Feb 6, 2001·100 cites·26 claims
- 0388US6316092B1Aerogel-coated sheetHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Nov 13, 2001·58 cites·21 claims
- 0488US6140377AProcess for preparing organically modified aerogels using alcoholsHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Oct 31, 2000·62 cites·13 claims
- 0573US6274765B1Process and catalyst for preparing acetic acid by catalytic oxidation of ethaneHOECHST RES & TECH GMBH & CO·Filed 1998·Granted Aug 14, 2001·16 cites·11 claims
- 0671US6129949AProcess for preparing organically modified aerogels using alcohols, wherein the resultant salts are precipitatedHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Oct 10, 2000·30 cites·18 claims
- 0766US6096856APolymer electrolytes and process for their productionHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Aug 1, 2000·31 cites·21 claims
- 0864US6034270AProcess for the selective preparation of acetic acid using a molybdenum, palladium, and rhenium catalystHOECHST RES & TECH GMBH & CO·Filed 1997·Granted Mar 7, 2000·9 cites·9 claims
- 0961US6214891B1Process for producing a cation-exchanging polymer electrolyte membrane (PEM)HOECHST RES & TECH GMBH & CO·Filed 1997·Granted Apr 10, 2001·16 cites·8 claims
- 1061US6171519B1Ferroelectric liquid crystal mixtureHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Jan 9, 2001·9 cites·12 claims
- 1161US6127306AOrganofunctionalized aerogelsHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Oct 3, 2000·23 cites·14 claims
- 1254US6022986AManganiferous polyoxometallates, synthesis and use thereofHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Feb 8, 2000·14 cites·9 claims
- 1352US6670504B1Method and producing acetic acid in a reactor cascadeHOECHST RES & TECH GMBH & CO·Filed 1998·Granted Dec 30, 2003·5 cites·13 claims
- 1447US6025524ASingle-stage process for the preparation of aminesHOECHST RES & TECH GMBH & CO·Filed 1998·Granted Feb 15, 2000·4 cites·46 claims
- 1537US6052940AElectrophotographic tonerHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Apr 25, 2000·4 cites·3 claims
- 1630US6129958AChiral smectic liquid crystal mixture containing 1,2-difluoronaphthalenesHOECHST RES & TECH GMBH & CO·Filed 1998·Granted Oct 10, 2000·0 cites·8 claims
- 1727US6068959ACoated carrier for developing electrostatically charged imagesHOECHST RES & TECH GMBH & CO·Filed 1996·Granted May 30, 2000·1 cites·6 claims
- 1823US6225508B1Method for producing alkanals using a rhodium-tri-polyethylene glycolateHOECHST RES & TECH GMBH & CO·Filed 1998·Granted May 1, 2001·0 cites·15 claims
- 1918US6048460ABiological method of treating sewage containing high concentrations of sludgeHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Apr 11, 2000·1 cites·2 claims
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