Inventor · disambiguated record
Heinz Ziemann
Also filed as: ZIEMANN HEINZ
20 granted patents·244 citations·filing 1974–1994
95Inventor score
Files withBAYER AG20
Top patents by PatentIndex Score
20 records- 0195US4408061AProcess for the preparation of 1,4-3,6-dianhydro-hexitolsBAYER AG·Filed 1982·Granted Oct 4, 1983·46 cites·11 claims
- 0292US4051177AProcess for the preparation of unsaturated amino compoundsBAYER AG·Filed 1974·Granted Sep 27, 1977·27 cites·6 claims
- 0387US5011996AProcess for the preparation of aminesBAYER AG·Filed 1989·Granted Apr 30, 1991·25 cites·18 claims
- 0487US4495369AProcess for the preparation of neopentylamineBAYER AG·Filed 1981·Granted Jan 22, 1985·26 cites·11 claims
- 0586US5204471Aα-trifluoromethyl-substituted, saturated bicyclic aminesBAYER AG·Filed 1992·Granted Apr 20, 1993·30 cites·2 claims
- 0686US4642344APolyaminesBAYER AG·Filed 1985·Granted Feb 10, 1987·21 cites·3 claims
- 0782US4940819AProcess for the hydrogenation of α,β-unsaturated ketonesBAYER AG·Filed 1989·Granted Jul 10, 1990·18 cites·17 claims
- 0878US5087775AProcess for the preparation of partially fluorinated alcoholsBAYER AG·Filed 1990·Granted Feb 11, 1992·16 cites·8 claims
- 0970US5283363AProcess for the preparation of (hetero)arylalk(en/in)ylamines and (hetero)arylalkinylaminesBAYER AG·Filed 1992·Granted Feb 1, 1994·11 cites·7 claims
- 1054US4100116APolyurethane foams from polyether polyols which contain amide groupsBAYER AG·Filed 1976·Granted Jul 11, 1978·8 cites·17 claims
- 1151US4622427AProcess for the preparation of partially hydrogenated derivatives of 2-nitro-1,1,1-trifluoroalkanesBAYER AG·Filed 1984·Granted Nov 11, 1986·3 cites·14 claims
- 1247US4602115ASubstituted 5-cycloalkyl-2,2-di-methyl-pentan-3-onesBAYER AG·Filed 1984·Granted Jul 22, 1986·2 cites·5 claims
- 1347US4434289AProcess for the preparation of 2-trimethylsilyloxy-ethylaminesBAYER AG·Filed 1982·Granted Feb 28, 1984·2 cites·16 claims
- 1443US5530169AProcess for the preparation of saturated, fluorine-containing and chlorine-free hydrocarbonsBAYER AG·Filed 1994·Granted Jun 25, 1996·2 cites·6 claims
- 1543US5093522ACarboxylic acid halides containing trifluoromethyl groups and a process for their preparationBAYER AG·Filed 1990·Granted Mar 3, 1992·2 cites·6 claims
- 1640US4764524ANovel substituted furazaneBAYER AG·Filed 1986·Granted Aug 16, 1988·2 cites·11 claims
- 1738US4845288AProcess for the preparation of hydroxybenzaldoxime O-ethersBAYER AG·Filed 1988·Granted Jul 4, 1989·1 cites·10 claims
- 1838US4822912AProcess for the preparation of 2,3,5,6-tetrafluorobenzoic acidBAYER AG·Filed 1988·Granted Apr 18, 1989·1 cites·12 claims
- 1933US4661640ASubstituted 5-cycloalkyl-2,2-di-methyl-pentan-3-onesBAYER AG·Filed 1986·Granted Apr 28, 1987·0 cites·4 claims
- 2028US4328223A2-Amino-3a,4,5,6-tetrahydro-perimidine derivatives and their medicinal use in combatting circulatory diseasesBAYER AG·Filed 1979·Granted May 4, 1982·1 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →