Patents by Inventor Hilmar Bischoff

Hilmar Bischoff 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).

  • Patent number: 4968689
    Abstract: For the treatment of lipoproteinaemia and arteriosclerosis, the new disubstituted pyridines of the formula ##STR1## in which R.sup.1 is optionally substituted aryl or heteroaryl,R.sup.2 is cycloalkyl or optionally substituted alkyl,R.sup.3 is hydrogen, cycloalkyl, or optionally substituted alkyl, aryl or heteroaryl,X is --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--,A is ##STR2## R.sup.6 is hydrogen or alkyl, and R.sup.7 is hydrogen, alkyl, aralkyl or a cation.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: November 6, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Angerbauer, Peter Fey, Walter Hubsch, Thomas Philipps, Hilmar Bischoff, Dieter Petzinna, Delf Schmidt, Thomas Gunter
  • Patent number: 4937255
    Abstract: For inhibiting 3-hydroxy-3-methylglutaryl coenzyme A and cholesterol biosynthesis, the novel disubstituted pyrroles of the formula ##STR1## in which R.sup.1 is aryl or heteroaryl,R.sup.2 is cycloalkyl or optionally substituted alkyl,R.sup.3 is hydrogen or cycloalkyl, or optionally substituted alkyl, aryl or heteroaryl,X is --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--,A is ##STR2## R.sup.6 is hydrogen or alkyl, and R.sup.7 is hydrogen, a cation or alkyl, aryl or aralkyl.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: June 26, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Walter Hubsch, Rolf Angerbauer, Peter Fey, Hilmar Bischoff, Dieter Petzinna, Delf Schmidt, Gunter Thomas
  • Patent number: 4894378
    Abstract: Blood sugar levels are reduced by administration of novel 4-thienyl-dihydropyridines of the formula ##STR1## in which R.sup.1 represents 1 or 2 halogen atoms, or represents straight-chain, branched or cyclic alkyl with up to 8 carbon atoms,R.sup.2 represents a straight-chain, branched or cyclic, saturated or unsaturated hydrocarbon radical which has up to 15 carbon atoms, is optionally interrupted by one or two oxygen atoms, -N-phenyl or --SO.sub.n -- (n=0, 1 or 2) and is optionally substituted by halogen, phenyl, hydroxyl, cyano, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, pyridyl, piperidino, N-phenylpiperazino, N-methylpiperazino, morpholino or N-benzyl-N-methyl-amino,R.sup.3 represents hydrogen, or represents straight-chain, branched or cyclic alkyl which has up to 6 carbon atoms and is optionally substituted by halogen, hydroxyl, amino or amino-C.sub.1 -C.sub.6 -alkoxy, or represents cyano or formyl andR.sup.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: January 16, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Goldmann, Hilmar Bischoff, Walter Puls, Joachim Bender, Dieter Petzinna, Klaus Schlossmann
  • Patent number: 4801715
    Abstract: Blood sugar levels are reduced by administration of novel 4-thienyl-dihydropyridines of the formula ##STR1## in which R.sup.1 represents 1 or 2 halogen atoms, or represents straight-chain, branched or cyclic alkyl with up to 8 carbon atoms,R.sup.2 represents a straight-chain, branched or cyclic, saturated or unsaturated hydrocarbon radical which has up to 15 carbon atoms, is optionally interrupted by one or two oxygen atoms, -N-phenyl or --SO.sub.n --(n=0, 1 or 2) and is optionally substituted by halogen, phenyl, hydroxyl, cyano, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, pyridyl, piperidino, N-phenylpiperazino, N-methylpiperazino, morpholino or N-benzyl-N-benzyl-N-methyl-amino,R.sup.3 represents hydrogen, or represents straight-chain, branched or cyclic alkyl which has up to 6 carbon atoms and is optionally substituted by halogen, hydroxyl, amino or amino-C.sub.1 -C.sub.6 -alkoxy, or represents cyano or formyl andR.sup.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: January 31, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Goldmann, Hilmar Bischoff, Walter Puls, Joachim Bender, Dieter Petzinna, Klaus Schlossmann
  • Patent number: 4786641
    Abstract: Blood-sugar-lowering dihydropyridines of the formula ##STR1## in which R.sup.1 represents phenyl, naphthyl, thienyl, pyridyl, chromenyl or thiochromenyl, it being possible for the radicals mentioned each to carry up to 2 identical or different substituents from the series comprising halogen, alkyl, alkoxy and alkylthio with in each case up to 6 carbon atoms, fluoroalkyl and fluoroalkoxy with in each case up to 3 carbon atoms and 3 fluorine atoms, nitro and cyano,R.sup.2 represents straight-chain, branched or cyclic alkyl which has up to 8 carbon atoms, can be interrupted in the alkyl chain by an oxygen or a sulphur atom and can be substituted by halogen, phenyl, cyano, hydroxyl, amino, alkylamino or dialkylamino with in each case up to 3 carbon atoms per alkyl group or by N-benzylmethylamino,R.sup.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: November 22, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Goldmann, Hans-Jurgen Ahr, Walter Puls, Hilmar Bischoff, Dieter Petzinna, Klaus Schlossmann, Joachim Bender
  • Patent number: 4721719
    Abstract: Reducing blood sugar with the novel dihydropyridinelactols, or salts thereof, of the formula ##STR1## in which R.sup.1 represents a phenyl, naphthyl, thienyl, pyridyl, chromonyl, thiochromonyl or thiochromenyl radical, the stated radicals optionally containing 1 or 2 identical or different substituents from the group consisting of fluorine, chlorine and bromine, alkyl, alkoxy and alkylthio, each having 1 to 6 carbon atoms, and fluoroalkyl or fluoroalkoxy, each having up to 3 carbon atoms and 3 fluorine atoms, and nitro and cyano,R.sup.2 represents a straight-chain, branched or cyclic alkyl having up to 12 carbon atoms which is optionally interrupted by 1 or 2 oxygen or sulphur atoms and which is optionally substituted by fluorine, chlorine, phenyl, cyano, hydroxyl, amino, C.sub.1 -C.sub.3 -alkylamino, di-C.sub.1 -C.sub.3 -alkylamino or N-benzylmethylamino,R.sup.3 represents cyano or straight-chain or branched alkyl which has up to 4 carbon atoms and is optionally interrupted in the chain by N-C.sub.1 -C.sub.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: January 26, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Goldmann, Friedrich Bossert, Hans J. Ahr, Hilmar Bischoff, Walter Puls, Dieter Petzinna, Klaus Schlossmann, Joachim Bender
  • Patent number: 4590179
    Abstract: The invention relates to amino-cyclitol derivatives of Formula (I) and their individual anomers. Also included in the invention are processes for the manufacture of said amino-cyclitol derivatives and their individual anomers, compositions containing said amino-cyclitol derivatives or anomers; and methods for the use of said derivatives and anomers for the treatment of diabetes, adiposity or hyperlipaemia.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: May 20, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fred R. Heiker, Lutz Muller, Walter Puls, Hilmar Bischoff
  • Patent number: 4588710
    Abstract: The invention relates to animo-cyclitol derivatives of Formula (I) and their individual anomers. Also included in the invention are processes for the manufacture of said amino-cyclitol derivatives and their individual anomers, compositions containing said amino-cyclitol derivatives or anomers; and methods for the use of said derivatives and anomers for the treatment of diabetes, adiposity or hyperlipaemia.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: May 13, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fred R. Heiker, Lutz Muller, Walter Puls, Hilmar Bischoff
  • Patent number: 4526784
    Abstract: The invention relates to animo-cyclitol derivatives of Formula (I) and their individual anomers. Also included in the invention are processes for the manufacture of said amino-cyclitol derivatives and their individual anomers, compositions containing said amino-cyclitol derivatives or anomers; and methods for the use of said derivatives and anomers for the treatment of diabetes, adiposity or hyperlipaemia.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: July 2, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fred R. Heiker, Lutz Muller, Walter Puls, Hilmar Bischoff
  • Patent number: 4469696
    Abstract: The invention relates to 4-,5-and 6-substituted 2-amino pyridines of Formula (I) and methods for their preparation. Also included in the invention are compositions containing said 2-amino pyridines of Formula (I) and the use of said compounds and compositions for use inter alia, as lipid absorption inhibitors.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: September 4, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Rosentreter, Walter Puls, Hilmar Bischoff