Gregor Haffer — 17 Patents at Schering

Gregor Haffer has been granted 17 US patents while listed as an inventor at Schering. The first was granted in 1980 and the most recent in October 1996. Gregor Haffer ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Gregor Haffer in Berlin, DE.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date
5569661	Process for the production of b-carbolines	Klaus Nickisch	1996-10-29
5401854	Process for the production of indole derivatives	Helmut Borner, Wolfgang Kubler, Klaus Nickisch	1995-03-28
5371000	Process for the production of ergoline derivatives	Heidi Hummel-Maquardt, Mario Kennecke, Alfred Weber, Klaus Nickisch	1994-12-06
5329009	Selective phenylation of 5-hydroxy-.beta.-carboline derivatives	Helmut Borner, Klaus Nickisch, Julius Deutsch	1994-07-12
5198553	Process for the production of gramine derivatives	Wolfgang Kubler, Reiner Wierzchowski, Klaus Nickisch	1993-03-30
4970314	Process for the preparation of 2-bromo-8-ergolinyl compounds	Helmut Borner, Gerhard Sauer	1990-11-13
4968801	Process for the production ergoline derivatives	Gerhard Sauer, Helmut Biere, Andreas Huth	1990-11-06
4826852	Novel ergolinyl compounds nitrogen-substituted in the 8-position, useful for treating dopamine deficiency	Gerhard Sauer, Helmut Wachtel, Herbert Schneider, Ulrich Eder	1989-05-02
4801714	Process for the preparation of ergolinylthioureas	Helmut Biere	1989-01-31
4766128	Optionally 11- to 13-substituted ergoline compounds useful as medicinal agents	Gerhard Sauer, Helmut Wachtel, Herbert Schneider, Wolfgang Kehr	1988-08-23
4748248	Process for the preparation of ergoline derivatives	Gerhard Sauer	1988-05-31
4695635	Process for the production of 2,3-dihydroergolines	Gerhard Sauer	1987-09-22
4644062	Process for the production of .beta.-carbolines by dehydrogenation	Helmut Borner, Andreas Huth	1987-02-17
4524208	Process for the preparation of lysergic acid esters	Gerhard Sauer	1985-06-18
4333928	16 .alpha.-Alkyl steroids, their preparation, and pharmaceutical preparations thereof	Gunter Neef, Ulrich Eder, Gerhard Sauer, Rudolf Wiechert, Hermann Steinbeck	1982-06-08
4298538	16-Dimethylaminomethylene-3-methoxy-1,3,5-(10)-estratrien-17-one, a process for the preparation thereof and its use as a preparative intermediate	Gunter Neef, Ulrich Eder, Gerhard Sauer	1981-11-03
4202991	Novel bicycloalkane derivatives and the production thereof	Gerhard Sauer, Helmut Hauser, Juergen Ruppert, Ulrich Eder, Rudolf Wiechert	1980-05-13

Gregor Haffer — 17 Patents

Issued Patents All Time

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