Inventor · disambiguated record
Gunther Cramm
Also filed as: CRAMM GUENTHER · CRAMM GUNTHER · LEHMANN WOLFGANG · LOBACH WILFRIED
14 granted patents·87 citations·filing 1976–2000
91Inventor score
Top patents by PatentIndex Score
14 records- 0185US4250299APolyamines containing amide groupsBAYER AG·Filed 1978·Granted Feb 10, 1981·29 cites·12 claims
- 0273US6525198B1Method for producing 4,6-dichloropyrimidine with sulfur compounds and phosphorus compoundsBAYER AG·Filed 2000·Granted Feb 25, 2003·5 cites·10 claims
- 0373US6441171B1Method for the production of 4,6-dichloropyrimidine with the aid of phosgeneBAYER AG·Filed 2000·Granted Aug 27, 2002·5 cites·8 claims
- 0471US4132736APreparation of 4-alkylthiosemicarbazidesBAYER AG·Filed 1976·Granted Jan 2, 1979·8 cites·10 claims
- 0564US6562970B1Method for producing 4-chloro-6-hydroxypyrimidineBAYER AG·Filed 2000·Granted May 13, 2003·2 cites·10 claims
- 0662US6441170B1Method of producing 4,6-dichloropyrimidine with acid chloridesBAYER AKITNEGESELLSCHAFT·Filed 2000·Granted Aug 27, 2002·3 cites·6 claims
- 0762US5283338AProcess for the preparation of 2-chloropyridinesBAYER AG·Filed 1992·Granted Feb 1, 1994·7 cites·1 claims
- 0859US6822095B1Method for producing 4,6-dichloropyrimidineBAYER AG·Filed 2000·Granted Nov 23, 2004·1 cites·9 claims
- 0959US5677453AProcess for the preparation of 4,6-dichloropyrimidinesBAYER AG·Filed 1996·Granted Oct 14, 1997·9 cites·10 claims
- 1043US4673729APaper auxiliary from condensation product of aliphatic polyol-ether-amine and compound polyfunctional toward amino groupsBAYER AG·Filed 1985·Granted Jun 16, 1987·9 cites·7 claims
- 1138US4250298APolyamines containing amide groupsBAYER AG·Filed 1978·Granted Feb 10, 1981·3 cites·17 claims
- 1237US4294985AProduction of thiocarbohydrazide on a commercial scaleBAYER AG·Filed 1979·Granted Oct 13, 1981·2 cites·3 claims
- 1332US4384110APolyamines containing urea groups prepared from lactam or aminocarboxylic acidBAYER AG·Filed 1982·Granted May 17, 1983·2 cites·5 claims
- 1432US4348514APolyamines containing urea groupsBAYER AG·Filed 1980·Granted Sep 7, 1982·2 cites·6 claims
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