Inventor · disambiguated record
Thomas Gerdau
Also filed as: GERDAU THOMAS
17 granted patents·140 citations·filing 1987–1996
92Inventor score
Files withHOECHST AG17
Top patents by PatentIndex Score
17 records- 0183US5585523AProcess for the preparation of aldehydes by catalytic gas phase hydrogenation of carboxylic acid or their derivatives with the aid of a tin catalystHOECHST AG·Filed 1995·Granted Dec 17, 1996·66 cites·22 claims
- 0271US5650537AProcess for the preparation of N-acyl-α-amino acid derivativesHOECHST AG·Filed 1995·Granted Jul 22, 1997·13 cites·31 claims
- 0366US5231224AAlkyl ether carboxylic acid tauridesHOECHST AG·Filed 1992·Granted Jul 27, 1993·8 cites·9 claims
- 0463US5648551AProcess for the preparation of halobenzaldehydesHOECHST AG·Filed 1996·Granted Jul 15, 1997·9 cites·21 claims
- 0560US5176941AProcess of producing a ceramic/fiber composite using a molten polysilazoneHOECHST AG·Filed 1989·Granted Jan 5, 1993·15 cites·9 claims
- 0649US4859795AEthylenically unsaturated phosphinic acid and thiophosphinic acid isocyanates and isothiocyanates, and a process for their preparationHOECHST AG·Filed 1987·Granted Aug 22, 1989·3 cites·10 claims
- 0747US4931513APolymeric hydridosilazanes and processes for their preparation and their useHOECHST AG·Filed 1988·Granted Jun 5, 1990·5 cites·10 claims
- 0845US5008423APolymeric hydridochlorosilazanes and processes for their preparationHOECHST AG·Filed 1988·Granted Apr 16, 1991·5 cites·13 claims
- 0940US5081078ASinterable ceramic powder, process for its preparation, silicon nitride ceramic manufactured therefrom, process for its manufacture and its useHOECHST AG·Filed 1989·Granted Jan 14, 1992·6 cites·15 claims
- 1036US5719284AProcess for the preparation of substituted 3-arylquinazoline-2,4-dionesHOECHST AG·Filed 1996·Granted Feb 17, 1998·1 cites·15 claims
- 1136US4966991AProcess for the preparation of alkali metal phosphonoformatesHOECHST AG·Filed 1988·Granted Oct 30, 1990·1 cites·14 claims
- 1236US4859562APhotosensitive mixture and photosensitive recording material produced therefrom with polymeric compound which is reaction product of unsaturated (thio)phosphinic acid iso(thio)cyanate and active hydrogen containing compoundHOECHST AG·Filed 1987·Granted Aug 22, 1989·5 cites·11 claims
- 1333US5066623APolymeric hydridosilazanes and processes for their preparation, and their useHOECHST AG·Filed 1990·Granted Nov 19, 1991·1 cites·5 claims
- 1432US4939225APolymeric hydridosilazanes, processes for the preparation thereof, silicon nitride-containing ceramic materials which can be prepared therefrom, and the preparation thereofHOECHST AG·Filed 1988·Granted Jul 3, 1990·1 cites·7 claims
- 1530US5189132APolymeric hydridochlorosilazanes, process for their preparation, ceramic materials containing silicon nitride which can be manufactured therefrom, and their manufactureHOECHST AG·Filed 1991·Granted Feb 23, 1993·0 cites·5 claims
- 1630US5081080APolymeric hydridosilazanes, processes for the preparation thereof, silicon nitride-containing ceramic materials which can be prepared therefrom, and the preparation thereofHOECHST AG·Filed 1990·Granted Jan 14, 1992·0 cites·8 claims
- 1730US5075266AProcess for the production of ceramic material containing silicon nitride from polymeric hydridochlorosilazanesHOECHST AG·Filed 1989·Granted Dec 24, 1991·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →