Inventor · disambiguated record
Hans-Helmut Schwarz
Also filed as: KAISER BERND-ULRICH · SCHWARZ HANS V · SCHWARZ HANS-H · SCHWARZ HANS-HELMUT
40 granted patents·1 pending application·464 citations·filing 1974–2006
98Inventor score
Top patents by PatentIndex Score
41 records- 0195US4122290AProcess for the preparation of trimethylolalkanesBAYER AG·Filed 1977·Granted Oct 24, 1978·39 cites·7 claims
- 0294US5171901AProcess for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropaneBAYER AG·Filed 1991·Granted Dec 15, 1992·51 cites·6 claims
- 0387US4247485AProcess for the preparation of 2,2-dimethylolalkanalsBAYER AG·Filed 1979·Granted Jan 27, 1981·21 cites·4 claims
- 0486US5023226ARuthenium supported catalyst, its preparation and its use in the preparation of substituted or unsubstituted cyclohexylamine and substituted or unsubstituted dicyclohexylamineBAYER AG·Filed 1989·Granted Jun 11, 1991·22 cites·18 claims
- 0586US4588833AProcess for the preparation of substituted succinic acid amidesBAYER AG·Filed 1984·Granted May 13, 1986·24 cites·20 claims
- 0686US4177645AProcess for isolating dinitrogen monoxideBAYER AG·Filed 1978·Granted Dec 11, 1979·28 cites·4 claims
- 0786US4148792APurification of caprolactamBAYER AG·Filed 1978·Granted Apr 10, 1979·16 cites·4 claims
- 0886US4045486AProcess for preparing azomethinesBAYER AG·Filed 1976·Granted Aug 30, 1977·20 cites·7 claims
- 0986US3966712AProcess for the purification of caprolactamBAYER AG·Filed 1974·Granted Jun 29, 1976·15 cites·3 claims
- 1085US4514578AProcess for the preparation of trimethylolpropaneBAYER AG·Filed 1984·Granted Apr 30, 1985·22 cites·18 claims
- 1185US4181810AProcess for the preparation of propane-1,3-diols, disubstituted in the 2-positionBAYER AG·Filed 1977·Granted Jan 1, 1980·17 cites·11 claims
- 1284US4952549ARuthenium catalyst, process for its preparation and process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine using the ruthenium catalystBAYER AG·Filed 1989·Granted Aug 28, 1990·19 cites·17 claims
- 1377US4233247AProcess for the preparation of 2,2-dimethylolalkanalsBAYER AG·Filed 1978·Granted Nov 11, 1980·10 cites·11 claims
- 1474US4348542AProcess for the production of mixtures of alkylated aromatic hydroxy compoundsBAYER AG·Filed 1980·Granted Sep 7, 1982·11 cites·3 claims
- 1574US4319053AProcess for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanesBAYER AG·Filed 1977·Granted Mar 9, 1982·10 cites·8 claims
- 1671US4153810AProcess for the preparation of alkyl ethersHAARMANN & REIMER GMBH·Filed 1977·Granted May 8, 1979·8 cites·6 claims
- 1767US4943549ASupported ruthenium catalyst, its preparation and its use in the preparation of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamineBAYER AG·Filed 1989·Granted Jul 24, 1990·20 cites·9 claims
- 1862US4097540AProcess for the preparation of 2-alkyl-2-methylpropane-1,3-diolBAYER AG·Filed 1977·Granted Jun 27, 1978·5 cites·14 claims
- 1961US4191711AProcess for the preparation of certain nuclear chlorinated benzotrichloridesBAYER AG·Filed 1978·Granted Mar 4, 1980·5 cites·14 claims
- 2059US3966785AProcess for the preparation of bisphenol bischlorocarbonic acid estersBAYER AG·Filed 1975·Granted Jun 29, 1976·5 cites·9 claims
- 2158US4141896AProcess for the producing ε-caprolactam from the distillation of cyclohexanone oximeBAYER AG·Filed 1977·Granted Feb 27, 1979·4 cites·2 claims
- 2255US3933924AProcess for preparing hydroxydiphenylBAYER AG·Filed 1974·Granted Jan 20, 1976·4 cites·5 claims
- 2354US4137263AProcess for the evaporation of cyclohexanone oximeBAYER AG·Filed 1977·Granted Jan 30, 1979·6 cites·3 claims
- 2453US5097071ASupported copper catalyst, process for its preparation and process for the preparation of n-alkylated aromatic amines using this copper catalystBAYER AG·Filed 1990·Granted Mar 17, 1992·14 cites·17 claims
- 2553US4057581AProcess for preparing diphenylaminesBAYER AG·Filed 1976·Granted Nov 8, 1977·10 cites·18 claims
- 2653US3948888AProcess for removing boric acid from lactamsBAYER AG·Filed 1974·Granted Apr 6, 1976·3 cites·6 claims
- 2751US5180861AProcess for the preparation of polychloro-fluoro-cyclo-pentenesBAYER AG·Filed 1990·Granted Jan 19, 1993·4 cites·13 claims
- 2851US4729977ASupported catalyst, process for its preparation and its use for the preparation of hydroxydiphenylBAYER AG·Filed 1986·Granted Mar 8, 1988·11 cites·17 claims
- 2950US3932536AProcess for preparing hydroxydiphenylBAYER AG·Filed 1974·Granted Jan 13, 1976·3 cites·5 claims
- 3048US4155876ACatalyst regeneration of boric acid on carbon catalystsBAYER AG·Filed 1977·Granted May 22, 1979·7 cites·2 claims
- 3147US4307253AProcess for the preparation of alkyl aryl ethersBAYER AG·Filed 1980·Granted Dec 22, 1981·3 cites·6 claims
- 3246US4902661ARhodium catalysts, process for their preparation and process for the preparation of substituted or unsubstituted diphenylamine by using the rhodium catalystsBAYER AG·Filed 1989·Granted Feb 20, 1990·8 cites·14 claims
- 3345US4804753AProcess for the preparation of Schiff's basesBAYER AG·Filed 1986·Granted Feb 14, 1989·2 cites·13 claims
- 3444US2006183882A1Continuous process for preparation of polyether polyolsDEXHEIMER EDWARD M·Filed 2006·Application pending·0 cites
- 3542US4371691APreparation of polycarbonate from specific crude bisphenolsBAYER AG·Filed 1980·Granted Feb 1, 1983·7 cites·6 claims
- 3640US5268509AProcess for the preparation of an iron catalyst and a process for the preparation of primary amines by the hydrogenation of nitriles using said iron catalystBAYER AG·Filed 1990·Granted Dec 7, 1993·2 cites·5 claims
- 3738US5233105AProcess for halogen-fluorine exchange in organic compounds and catalysts for this processBAYER AG·Filed 1990·Granted Aug 3, 1993·1 cites·7 claims
- 3836US5245082AProcess for the production of di-(4-aminocyclohexyl)-methane containing 15 to 25% by weight of the trans-trans isomerBAYER AG·Filed 1993·Granted Sep 14, 1993·4 cites·13 claims
- 3932US5174985AProcess for the oxidation of water-insoluble organic compoundsBAYER AG·Filed 1991·Granted Dec 29, 1992·3 cites·4 claims
- 4030US4028347AMethod for processing lactam residues which contain boric acidBAYER AG·Filed 1975·Granted Jun 7, 1977·0 cites·6 claims
- 4129US4157986AAbrasion resistant catalystBAYER AG·Filed 1977·Granted Jun 12, 1979·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →