Helmut Biere — 20 Patents at Schering

Helmut Biere has been granted 20 US patents while listed as an inventor at Schering. The first was granted in 1984 and the most recent in December 1997. Helmut Biere ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Helmut Biere in Berlin, DE.

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Showing 1–20 of 20 patents

Patent #	Title	Co-Inventors	Date
5700808	5- or 6-substituted .beta.-carboline-3-carboxylic acid esters	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, Wolfgang Kehr +5 more	1997-12-23
5414002	5- or 6-substituted .beta.-carboline-3-carboxylic acid esters	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, Wolfgang Kehr +5 more	1995-05-09
5179111	Imidazole derivatives	Ralph Rohde, Herbert Schneider, Lechoslaw Turski	1993-01-12
4987146	N-hetaryl imidazole derivatives	Ralph Rohde, Ralph Schmiechen, John S. Andrews, David N. Stephens	1991-01-22
4968801	Process for the production ergoline derivatives	Gerhard Sauer, Gregor Haffer, Andreas Huth	1990-11-06
4960777	Heteroaryloxy-.beta.-carboline derivatives, their preparation and their use as medicinal agents	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, David N. Stephens +2 more	1990-10-02
4952698	Imidazole derivatives	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, Herbert Schneider +1 more	1990-08-28
4877792	Heteroaryloxy-beta-carboline derivatives, their preparation and their use as medicinal agents	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, David N. Stephens +2 more	1989-10-31
4855295	Tetrahydro-beta-carbolines, and their use as drugs	Mogens Engelstoft, Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann +1 more	1989-08-08
4801714	Process for the preparation of ergolinylthioureas	Gregor Haffer	1989-01-31
4772610	1-alkyl ergolinylthiourea derivatives and their use as antidepressant agents	Gerhard Sauer, Helmut Wachtel	1988-09-20
4757070	3-oxadiazolyl-5-aminoalkyl-beta-carboline derivatives compositions and use	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, David N. Stephens	1988-07-12
4731358	.beta.-carbolines and their use as tranquilizers	Andreas Huth, Dieter Rahtz, Dieter Seidelmann, Helmut Schmiechen, Claus T. Braestrup	1988-03-15
4731365	5-aminoalkyl-beta-carboline derivatives, psycho tropic compositions and use	Andreas Huth, Dieter Rahtz, Ralph Schmiechen, Dieter Seidelmann, David N. Stephens	1988-03-15
4705856	Process for producing .beta.-carboline derivatives	—	1987-11-10
4705857	Indole derivatives, process for producing them and their use as intermediates	—	1987-11-10
4645762	Diphosphonic acid derivatives and pharmaceutical preparations containing same	Clemens Rufer, Irmgard Boettcher	1987-02-24
4503049	Diphosphonic acid derivatives and pharmaceutical preparations containing them	Clemens Rufer, Irmgard Boettcher	1985-03-05
4473560	Diphosphonic acid derivatives and pharmaceutical preparations containing them	Clemens Rufer, Irmgard Boettcher	1984-09-25
4457927	Pyrido[2,1-b]quinazolinone derivatives and the preparation and use thereof	Joachim-Friedrich Kapp, Irmgard Bottcher	1984-07-03

Helmut Biere — 20 Patents

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