Inventor · disambiguated record
Hans-Joachim Kotzsch
Also filed as: DRAESE RUDIGER · KOETZSCH HANS-JOACHI · KOETZSCH HANS-JOACHIM · KOTZSCH HANS-JOACHIM
46 granted patents·686 citations·filing 1973–2002
98Inventor score
Top patents by PatentIndex Score
46 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
- 0294US5282998AMixtures of linear and cyclic siloxanes or siloxane oligomers and a process for their preparationHUELS CHEMISCHE WERKE AG·Filed 1992·Granted Feb 1, 1994·71 cites·3 claims
- 0392US6727375B2Apparatus and process for preparing substantially halogen-free trialkoxysilanesDEGUSSA·Filed 2002·Granted Apr 27, 2004·36 cites·16 claims
- 0492US5591818AOrganosilane polycondensation productsHUELS CHEMISCHE WERKE AG·Filed 1995·Granted Jan 7, 1997·73 cites·31 claims
- 0592US4226793AProcess for the manufacture of monomeric and oligomeric silicic acid estersDYNAMIT NOBEL AG·Filed 1978·Granted Oct 7, 1980·25 cites·13 claims
- 0691US4228092AProcess for the preparation of organoalkoxysilanesDYNAMIT NOBEL AG·Filed 1979·Granted Oct 14, 1980·22 cites·8 claims
- 0788US5107009AProcess for the preparation of mercaptosilanesHUELS CHEMISCHE WERKE AG·Filed 1991·Granted Apr 21, 1992·36 cites·7 claims
- 0888US4039567AProcess for the continuous esterification of chlorosilanesDYNAMIT NOBEL AG·Filed 1975·Granted Aug 2, 1977·19 cites·7 claims
- 0987US4152346ABeta-aminoethylsilanes and a method of preparing sameDYNAMIT NOBEL AG·Filed 1974·Granted May 1, 1979·19 cites·17 claims
- 1083US4173576AProcess for the esterification of chlorosilanesDYNAMIT NOBEL AG·Filed 1978·Granted Nov 6, 1979·13 cites·12 claims
- 1182US4115427AMethod of preparing silicon-nitrogen compoundsDYNAMIT NOBEL AG·Filed 1977·Granted Sep 19, 1978·14 cites·18 claims
- 1282US3985781AEsterification method for trichlorosilaneDYNAMIT NOBEL AG·Filed 1975·Granted Oct 12, 1976·13 cites·15 claims
- 1380US3950364AProcess for the preparation of organic silicon compoundsDYNAMIT NOBEL AG·Filed 1974·Granted Apr 13, 1976·9 cites·2 claims
- 1479US4029679AOrganophosphonic acids or esters containing an epoxy groupDYNAMIT NOBEL AG·Filed 1974·Granted Jun 14, 1977·16 cites·4 claims
- 1578US4370204AMethod for the purification of hexamethyldisiloxaneDYNAMIT NOBEL AG·Filed 1982·Granted Jan 25, 1983·11 cites·5 claims
- 1678US4028384AProcess for the preparation of organic silicon compoundsDYNAMIT NOBEL AG·Filed 1973·Granted Jun 7, 1977·9 cites·20 claims
- 1775US4060538AProcess for the preparation of silane esters of tertiary alcoholsDYNAMIT NOBEL AG·Filed 1974·Granted Nov 29, 1977·8 cites·32 claims
- 1875US4048374AFunctional organophosphonic acid esters as preservative adhesion promoting agents and coating for metalsDYNAMIT NOBEL AG·Filed 1975·Granted Sep 13, 1977·26 cites·26 claims
- 1975US4016188AProcess for the preparation of low silanes and silane estersDYNAMIT NOBEL AG·Filed 1975·Granted Apr 5, 1977·18 cites·25 claims
- 2073US4101397AProcess for the preparation of alpha-chloromethylsilanesDYNAMIT NOBEL AG·Filed 1977·Granted Jul 18, 1978·8 cites·9 claims
- 2172US4417067AMethod of cleaving organosiloxanesDYNAMIT NOBEL AG·Filed 1982·Granted Nov 22, 1983·8 cites·10 claims
- 2269US4254270ASalt-like products of the addition of phenols onto amino organosilane esters and method for the preparation thereofDYNAMIT NOBEL AG·Filed 1979·Granted Mar 3, 1981·5 cites·25 claims
- 2367US4789752AMethod for the preparation of orthoesters of titanium, zirconium or hafniumHUELS TROISDORF·Filed 1986·Granted Dec 6, 1988·9 cites·16 claims
- 2465US4642363AMethod of preparing trialkyl organo-oxysilanesDYNAMIT NOBEL AG·Filed 1985·Granted Feb 10, 1987·9 cites·5 claims
- 2564US4924021ACyclic phenol organosilanes and method for their preparationHUELS CHEMISCHE WERKE AG·Filed 1987·Granted May 8, 1990·7 cites·18 claims
- 2664US4060536AMethod of preparing N,N'-bis-trimethylsilylureaDYNAMIT NOBEL AG·Filed 1976·Granted Nov 29, 1977·4 cites·10 claims
- 2761US4467105AMethod of preparing glycol esters of organosilanesDYNAMIT NOBEL AG·Filed 1982·Granted Aug 21, 1984·10 cites·7 claims
- 2860US6294682B1Alkoxides with alkaline earths and titanium, zirconium and/or hafnium, their production and useDU PONT·Filed 1996·Granted Sep 25, 2001·15 cites·8 claims
- 2960US5187291AProcess for the simultaneous and continuous preparation of acyloxysilanes and carboxylic acid chloridesHUELS CHEMISCHE WERKE AG·Filed 1992·Granted Feb 16, 1993·8 cites·13 claims
- 3057US4310680AMethod of cleaving siloxanesDYNAMIT NOBEL AG·Filed 1980·Granted Jan 12, 1982·5 cites·29 claims
- 3155US5468706AStorage-stable solution of a mixture of carbonated magnesium methoxide, carbonated magnesium ethoxide and their carbonated mixed alkoxide in a combination of methanol and ethanol and uses thereofHUELS CHEMISCHE WERKE AG·Filed 1993·Granted Nov 21, 1995·5 cites·5 claims
- 3253US4609749AMethod for the simultaneous preparation of carboxylic acid trimethylsilyl esters and silylated carboxylic acid amidesDYNAMIT NOBEL AG·Filed 1985·Granted Sep 2, 1986·4 cites·10 claims
- 3353US4213908ASiliceous dioxolane derivatives and their application to the manufacture of organosilane esters containing epoxy groupsDYNAMIT NOBEL AG·Filed 1975·Granted Jul 22, 1980·5 cites·6 claims
- 3450US4987268AProcess for the preparation of asymmetric terminally mono-unsaturated glycol ethersHUELS CHEMISCHE WERKE AG·Filed 1990·Granted Jan 22, 1991·4 cites·4 claims
- 3549US5349073ALow-temperature-stable titanium chelates and method for their preparationHUELS CHEMISCHE WERKE AG·Filed 1993·Granted Sep 20, 1994·4 cites·3 claims
- 3648US5468705AStorage-stable solution of carbonated magnesium methoxide in methanol and its useHUELS CHEMISCHE WERKE AG·Filed 1993·Granted Nov 21, 1995·11 cites·5 claims
- 3748US5208359AProcess for the preparation of di-tert.butoxydiacetoxysilaneHUELS CHEMISCHE WERKE AG·Filed 1991·Granted May 4, 1993·4 cites·4 claims
- 3848US4647681AMethod for the preparation of persilylated carboxylic acid amidesDYNAMIT NOBEL AG·Filed 1985·Granted Mar 3, 1987·3 cites·6 claims
- 3947US5456801AStorage-stable solutions of carbonated magnesium ethylate in ethanol and their preparation and useHUELS CHEMISCHE WERKE AG·Filed 1993·Granted Oct 10, 1995·3 cites·2 claims
- 4044US4404014ASalt-like products of the addition of phenols onto amino organosilane esters and method for the preparation thereof and use as a preservativeDYNAMIT NOBEL AG·Filed 1980·Granted Sep 13, 1983·1 cites·46 claims
- 4144US3932464ASiliceous dioxolane derivativesDYNAMIT NOBEL AG·Filed 1974·Granted Jan 13, 1976·6 cites·3 claims
- 4242US5087714AMethod of preventing discoloration of vinylacetoxysilanesHUELS CHEMISCHE WERKE AG·Filed 1991·Granted Feb 11, 1992·2 cites·3 claims
- 4342US4677215AMethod of preparing partially esterified silicon halidesDYNAMIT NOBEL AG·Filed 1986·Granted Jun 30, 1987·2 cites·19 claims
- 4441US5210334AProcess for the preparation of alkaline earth metal alkylates having a spherical particle formHUELS CHEMISCHE WERKE AG·Filed 1991·Granted May 11, 1993·7 cites·7 claims
- 4530US4824979AMethod for the preparation of partial esters and ortho esters of titanium, zirconium or hafniumHUELS TROISDORF·Filed 1985·Granted Apr 25, 1989·0 cites·12 claims
- 4630US4161486ACleavage of silicon-to-carbon bonds by means of hydrogen halideDYNAMIT NOBEL AG·Filed 1978·Granted Jul 17, 1979·1 cites·6 claims
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