Patents by Inventor Hans P. Wolff

Hans P. Wolff 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: 5145611
    Abstract: Carboxylic acid derivatives of the formula ##STR1## R.sub.1 is alkoxy, alkylthio, alkylsulphinyl, alkulsulphonyl, alkylamino, cycloalkyl, or cycloalkoxy or optionally substituted aryl, aryloxy, arylthio, arylsulphinyl, arylsulphonyl or arylamino. R.sub.2 is optionally substituted aryl or, when B is alkylene also a hydrogen atom. A is a straight-chained or branched, saturated or unsaturated alkylene containing 3 to 10 carbon atoms which is optionally interrupted by a heteratom attached to a saturated carbon and has a chain length of at least 3 atoms. Y is S(O).sub.n group or oxygen, n being 0, 1 or 2. B is a valency bond or a straight-chained or branched, saturated or unsaturated alkylene containing 1 to 18 carbon atoms. Physiologically acceptable salts, esters and amides thereof are also included. The compounds are useful in the treatment of metabolic diseases.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: September 8, 1992
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hans P. Wolff, Ernst-Christian Witte, Hans-Frieder Kuehnle
  • Patent number: 4933367
    Abstract: This invention relates to carboxylic acid derivatives and their use thereof. The compounds are useful in treatment of various diseases such as diabetes, prediabetic conditions, adipositas ailments or atherosclerosis.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: June 12, 1990
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hans P. Wolff, Ernst-Christian Witte, Hans-Frieder Kuhnle
  • Patent number: 4833161
    Abstract: The present invention provides carboxylic acid derivatives of the general formula: ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, are optionally substituted aryl radicals or optionally substituted heterocyclic radicals, A is a straight-chained or branched, saturated or unsaturated alkylene chain containing up to 10 carbon atoms which can contain an oxygen, sulphur or nitrogen atom and is optionally substituted by a hydroxyl group, Y is an S(O).sub.n group or an oxygen atom, n is 0, 1 or 2 and B is a valency bond or a saturated or unsaturated alkylene radical containing up to 5 carbon atoms; as well as the physiologically acceptable salts, esters and amides thereof, with the proviso that(a) R.sub.1 and R.sub.2 are not simultaneously aryl radicals and(b) when an unsaturated alkylene chain is present which contains a heteroatom, the heteroatom is not connected to an unsaturated aliphatic carbon atom.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: May 23, 1989
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hans P. Wolff, Hans-Frieder Kuhnle
  • Patent number: 4616086
    Abstract: The present invention is concerned with new carboxylic acid derivatives, with processes for the preparation thereof and with pharmaceutical compositions for lipid depression and thrombocyte aggregation, containing them, and to methods for treating infirmaties caused by excess lipids or thrombocyte aggregation.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: October 7, 1986
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolff, Bernd Hagenbruch, Karlheinz Stegmeir, Johannes Pill
  • Patent number: 4425360
    Abstract: The present invention provides pyruvic acid oximes of the general formula: ##STR1## wherein R is a hydrogen atom, a C.sub.3 -C.sub.8 cycloalkyl, C.sub.1 -C.sub.6 alkoxy, cinnamyloxy, phenylamino, phenyl-N-alkylamino or phenylthio radical or an aryl or aryloxy radical, the aryl moiety of which can be substituted one or more times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, hydroxyl, trifluoromethyl, amino, acetylamino, nitrile, nitro or methylenedioxy, A is a straight-chained or branched, saturated or unsaturated aliphatic hydrocarbon chain containing up to 10 carbon atoms, which can be substituted one or more times by halogen or hydroxyl, and R.sub.1 is a C.sub.1 -C.sub.8 alkyl radical, which can be substituted one or more times by halogen, hydroxyl, nitrile, phenyl or carboxyl, or is a nitrile or formyl group, with the proviso that when R--A-- is a methyl or ethyl radical, R.sub.1 is not a methyl radical or a nitrile group and when R--A-- is a benzyl radical, R.sub.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: January 10, 1984
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hans P. Wolff, Ruth Heerdt, Manfred Hubner, deceased, Hans Kuhnle, Felix H. Schmidt
  • Patent number: 4387104
    Abstract: A pyruvic acid hydrazone derivative of the formula: ##STR1## wherein R is an aryl radical optionally substituted by lower alkyl or is an aliphatic hydrocarbon radical which can be substituted by a lower alkoxy, a cycloalkyl or an optionally substituted aryl radical,A is an alkylene radical containing 2 to 8 carbon atoms, with at least 2 carbon atoms between B and the nitrogen atom, andB is an oxygen or sulphur atom;or a physiologically acceptable salt, ester or amide thereof which possesses hypoglycaemic activity.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: June 7, 1983
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ruth Heerdt, Hans P. Wolff, Fritz Kaiser, Wolfgang Schaumann, Hans Kuhnle
  • Patent number: 4258058
    Abstract: Phenoxyalkylcarboxylic acid compounds of the formula ##STR1## wherein R is hydrogen or lower alkylR.sub.1 is alkyl or aryl, aralkyl or aralkenyl radical, the aryl moiety of which can be substituted one or more times by halogen, hydroxyl, trifluoromethyl or lower alkyl, alkoxy or acylR.sub.2 and R.sub.3 are individually selected from hydrogen or lower alkyl, andn is 0, 1, 2 or 3and the physiologically acceptable salts, esters and amides thereof; are outstandingly effective in inhibiting thrombocyte aggregation.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: March 24, 1981
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolff, Max Thiel, Karlheinz Stegmeier, Egon Roesch
  • Patent number: 4153728
    Abstract: Novel phenoxyalkylcarboxylic acid compounds of the formula ##STR1## wherein B is a valency bond or a straight-chained or branched, saturated or unsaturated hydrocarbon radical containing up to 3 carbon atoms;N is 1 or 2 andR.sub.1, r.sub.2 and R.sub.3 are hydrogen or lower alkyl; and the pharmacologically compatible salts thereof; have been found to be outstandingly effective in lowering the serum lipid level and the cholesterol level in mammals without inducing undesired side effects and to possess excellent thrombocyte-aggregation inhibiting activity.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: May 8, 1979
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hans P. Wolff, Ernst-Christian Witte, Max Thiel, Harald Stork, Egon Roesch
  • Patent number: 4151303
    Abstract: Novel phenoxyalkylcarboxylic acid compounds of the formula ##STR1## wherein A is aryl, aryloxy, substituted aryl or substituted aryloxy, wherein the substituents are selected from lower alkyl, lower alkoxy, halogen and haloalkyl;B is a straight-chained or branched, saturated or unsaturated hydrocarbyl containing up to 5 carbon atoms;N is 1, 2 or 3 andR.sub.1, r.sub.2 and R.sub.3, which may be the same or different, are hydrogen or lower alkyl;And the pharmacologically compatible salts thereof; have been found to be outstandingly effective in depressing serum-lipid and triglycerides in the serum of mammals.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: April 24, 1979
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolff, Kurt Stach, deceased, Wolfgang Schaumann, Karlheinz Stegmeier