Patents by Inventor Helmut Bittiger
Helmut Bittiger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7119189Abstract: The present invention provides purified GABAB receptors and receptor proteins derived from rat and human sources, as well as nucleic acids which encode such proteins. The proteins and nucleic acids of the invention share significant homology with the GABAB receptor and the DNA encoding it as specifically disclosed herein. The invention moreover provides methods for isolating other members of the GABAB receptor family using DNA cloning technology and probes derived from the sequences provided herein, as well as novel members of the GABAB receptor family isolated by such methods.Type: GrantFiled: June 6, 2001Date of Patent: October 10, 2006Assignee: Novartis AGInventors: Klemens Kaupmann, Bernhard Bettler, Helmut Bittiger, Wolfgang Fröstl, Stuart J Mickel
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Publication number: 20020091250Abstract: The present invention provides purified GABAB receptors and receptor proteins derived from rat and human sources, as well as nucleic acids which encode such proteins. The proteins and nucleic acids of the invention share significant homology with the GABAB receptor and the DNA encoding it as specifically disclosed herein. The invention moreover provides methods for isolating other members of the GABAB receptor family using DNA cloning technology and probes derived from the sequences provided herein, as well as novel members of the GABAB receptor family isolated by such methods.Type: ApplicationFiled: June 6, 2001Publication date: July 11, 2002Inventors: Klemens Kaupmann, Bernhard Bettler, Helmut Bittiger, Wolfgang Frostl, Stuart J. Mickel
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Patent number: 5300679Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.Type: GrantFiled: October 29, 1992Date of Patent: April 5, 1994Assignee: Ciba-Geigy CorporationInventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
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Patent number: 5190933Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.Type: GrantFiled: March 3, 1992Date of Patent: March 2, 1993Assignee: Ciba-Geigy CorporationInventors: Eric K. Baylis, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall
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Patent number: 5064819Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.Type: GrantFiled: March 30, 1990Date of Patent: November 12, 1991Assignee: Ciba-Geigy CorporationInventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
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Patent number: 5051524Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.Type: GrantFiled: February 26, 1990Date of Patent: September 24, 1991Assignee: Ciba-Geigy CorporationInventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
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Patent number: 5013863Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.2 denotes hydrogen or alkyl, denotes an alkali metal or ammonium ion R.sup.6, or Z represents a protected or latent amino group Z.sup.0 and R.sup.Type: GrantFiled: July 12, 1989Date of Patent: May 7, 1991Assignee: Ciba-Geigy CorporationInventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Froostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe