Patents by Inventor Manfred Reiffen

Manfred Reiffen 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: 6143769
    Abstract: The present application relates to the uses of phenylacetic acid benzylamides and new (S)(+)-2-ethoxy-4-[N-[1-2-piperidino-phenyl)-3-methyl-1-butyl]-aminocarbon ylmethyl]-benzoic acid and the salts thereof, which have valuable pharmacological properties, namely an effect on the intermediate metabolism, but particularly the effect of lowering blood sugar.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: November 7, 2000
    Assignee: Karl Thomae GmbH
    Inventors: Wolfgang Grell, Rudolf Hurnaus, Gerhart Griss, deceased, Robert Sauter, Manfred Reiffen, Eckhard Rupprecht
  • Patent number: 5604225
    Abstract: Substituted thiazoles, oxazoles and 2-hydroxy morpholine compounds useful in the treatment of diabetes mellitus and obesity are described.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: February 18, 1997
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Manfred Reiffen, Rudolf Hurnaus, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht
  • Patent number: 5519138
    Abstract: A phenylalkyl derivative of the formula ##STR1## wherein R.sub.a to R.sub.f, A and B are substituents and n is the number 0 or 1.These phenylalkyl derivatives possess angiotensin antagonist activity.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: May 21, 1996
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Uwe Ries, Manfred Reiffen, Wolfgang Grell, Norbert Hauel, Berthold Narr, Armin Heckel, Andreas Bomhard, Jacques van Meel, Wolfgang Wienen, Michael Entzeroth
  • Patent number: 5457205
    Abstract: Compounds of formula ##STR1## where the substituents are as defined herein, are disclosed, which compounds are useful in the treatment of diabetes and obesity, among other uses.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: October 10, 1995
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Manfred Reiffen, Rudolph Hurnaus, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht
  • Patent number: 5312924
    Abstract: The present application relates to the uses of phenylacetic acid benzylamides and new (S)(+)-2-ethoxy-4-[N-[1-2-piperidino-phenyl)-3-methyl-1-butyl]-aminocarbon ylmethyl]benzoic acid and the salts thereof, which have valuable pharmacological properties, namely an effect on the intermediate metabolism, but particularly the effect of lowering blood sugar.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: May 17, 1994
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Wolfgang Grell, Rudolf Hurnaus, Gerhart Griss, deceased, Robert Sauter, Manfred Reiffen, Eckhard Ruprecht
  • Patent number: 5232946
    Abstract: The invention relates to new phenylethanolamines of general formula ##STR1## wherein A represents a straight-chained or branched alkylene group,B represents a bond, an alkylene group, a carbonyl or hydroxymethylene group,R.sub.1 represents a hydrogen atom, a halogen atom or a trifluoromethyl group,R.sub.2 represents a hydrogen atom or an amino group,R.sub.3 represents a cyano group, a hydrogen, chlorine or bromine atom andR.sub.4 represents a hydrogen or halogen atom, an alkyl, hydroxy, alkoxy, carboxy, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl or dialkylaminocarbonyl group or an alkoxy group substituted in the end position by a carboxy, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, hydroxy, alkoxy, amino, alkylamino, dialkylamino, pyrrolidino, piperidino or hexamethyleneimino group,the optical isomers and diastereoisomers and acid addition salts thereof.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: August 3, 1993
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Rudolf Hurnaus, Manfred Reiffen, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht
  • Patent number: 5219852
    Abstract: Substituted thiazoles, oxazoles and 2-hydroxy morpholine compounds useful in the treatment of diabetes mellitus and obesity are described.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: June 15, 1993
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Manfred Reiffen, Rudolf Hurnaus, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht
  • Patent number: 5216167
    Abstract: Phenylacetic acid benzylamides having the following general structure ##STR1## wherein the substituents are defined herein, are disclosed, which compounds are hypoglcemic agents.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: June 1, 1993
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Wolfgang Grell, Rudolf Hurnaus, Gerhart Griss, deceased, Robert Sauter, Manfred Reiffen, Eckhard Rupprecht
  • Patent number: 5175157
    Abstract: Disclosed are new cyclic amine derivatives of the formula I ##STR1## wherein the substituents are defined in the specification. These compounds are useful as for treating sinus tachycardia.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: December 29, 1992
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Manfred Psiorz, Joachim Heider, Andreas Bomhard, Manfred Reiffen, Norbert Hauel, Klaus Noll, Berthold Narr, Christian Lillie, Walter Kobinger, Jurgen Dammgen
  • Patent number: 5068325
    Abstract: The present invention relates to new 4,5,7,8-tetrahydro-6H-thiazolo[5,4-d]azepines of general formula II ##STR1## wherein the substituents are defined herein below, which compounds have valuable pharmacological properties, namely selective effects on the dopaminergic system which are achieved by stimulating (predominantly D2) dopamine receptors.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: November 26, 1991
    Assignee: Karl Thomae GmbH
    Inventors: Wolfgang Grell, Rudolf Hurnaus, Manfred Reiffen, Robert Sauter, Ludwig Pichler, Walter Kobinger, Michael Entzeroth, Joachim Mierau, Gunter Schingnitz
  • Patent number: 5026702
    Abstract: The invention relates to new morpholines and morpholine-N-oxides of formula ##STR1## wherein the substituents are defined hereunder, which compounds have valuable pharmacological properties, namely an effect on the metabolism, preferably the effect of lowering blood sugar and reducing body fat, and the effect of lowering the atherogenic .beta.-lipoproteins VLDL and LDL, and a performance enhancing effect in animals.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: June 25, 1991
    Assignee: Dr. Karl Thomae, GmbH
    Inventors: Manfred Reiffen, Michael Mark, Robert Sauter, Wolfgang Grell
  • Patent number: 4886814
    Abstract: Substituted thiazoles, oxazoles and 2-hydroxy morpholine compounds useful in the treatment of diabetes mellitus and obesity are described.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: December 12, 1989
    Assignee: Dr. Karl Thomas GmbH
    Inventors: Manfred Reiffen, Rudolf Hurnaus, Robert Sauter, Wolfgang Grell, Eckhard Rupprecht
  • Patent number: 4766130
    Abstract: Compounds of the formula ##STR1## wherein A, B, C and D are --N.dbd., HN.dbd., R.sub.3 N.dbd., O.dbd.C.dbd., HC.tbd., HO--C.tbd. or R.sub.3 SO.sub.2 --O--C.tbd.; andR.sub.1 and R.sub.2 are substituents of various types.The compounds are useful as hypotensives and cardiotonics.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: August 23, 1988
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Volkhard Austel, Joachim Heider, Norbert Hauel, Manfred Reiffen, Jacobus C. A. van Meel, Willi Diederen
  • Patent number: 4746658
    Abstract: Compounds of the formula ##STR1## wherein A, B, C and D are each independently --N.dbd. or --CH.dbd., provided, however, that at least two of them must be --N.dbd., and when A and C are both --N.dbd., at least one or both of B and D must be --N.dbd.; andR.sub.1, R.sub.2 and R.sub.3 are substituents of diverse types;tautomers thereof; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds are useful as cardiotonics.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: May 24, 1988
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Volkhard Austel, Norbert Hauel, Joachim Heider, Manfred Reiffen, Jacobus C. A. Van Meel, Willi Diederen
  • Patent number: 4722929
    Abstract: The invention relates to novel 2-phenyl-imidazoles of the formula ##STR1## and the tautomers and acid addition salts thereof, particularly the pharmacologically acceptable acid addition salts, which exhibit valuable pharmacological properties, particularly an effect on the contractility of the heart muscle. The compounds of Formula I may be prepared by methods conventionally used for similar compounds.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: February 2, 1988
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Volkhard Austel, Joachim Heider, Norbert Hauel, Manfred Reiffen, Josef Nickl, Jacobus C. A. van Meel, Willi Diederen
  • Patent number: 4699909
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen; alkyl of 1 to 7 carbon atoms; cycloalkyl of 3 to 7 carbon atoms; monosubstituted alkyl of 1 to 3 carbon atoms, where the substituent is pyridyl, methypyridyl, phenyl, mono-, di- or trisubstituted phenyl, where the substituents on the phenyl ring, which may be identical to or different from each other, are selected from the group consisting of one amino, one dimethylamino, one to two hydroxyls, one to three methoxys and one to three halogens; .omega.-monosubstituted alkyl of 2 to 4 carbon atoms, where the substituent is hydroxyl or di(alkyl of 1 to 3 carbon atoms)amino; phenyl; monohalo-phenyl; unsubstituted or monosubstituted straight or branched alkanoyl of 1 to 6 carbon atoms, where the substituent is phenyl, methoxyphenyl or cycloalkyl of 3 to 7 carbon atoms; or unsubstituted or monosubstituted phenylsulfonyl, where the substituent is methyl or methoxy; andR.sub.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: October 13, 1987
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Norbert Hauel, Volkhard Austel, Joachim Heider, Manfred Reiffen, Willi Diederen, Walter Haarman
  • Patent number: 4696931
    Abstract: There are disclosed novel imidazole derivatives of the formula. ##STR1## and derivatives of the formula ##STR2## the tautomers thereof, and non-toxic, pharmacologically acceptable addition salts thereof with inorganic or organic acids. The compounds described herein are useful in treating cardiac insufficiency.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: September 29, 1987
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Norbert Hauel, Volkhard Austel, Joachim Heider, Manfred Reiffen, Willi Diederen
  • Patent number: 4670438
    Abstract: Compounds of the formula ##STR1## wherein A, B, C and D are --N.dbd., HN.dbd., R.sub.3 N.dbd., O.dbd.C.dbd., HC.tbd., HO--C.tbd. or R.sub.3 SO.sub.2 --O--C.tbd.; andR.sub.1 and R.sub.2 are substituents of various types.The compounds are useful as hypotensives and cardiotonics.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: June 2, 1987
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Volkhard Austel, Joachim Heider, Norbert Hauel, Manfred Reiffen, Jacobus C. A. van Meel, Willi Diederen
  • Patent number: 4656171
    Abstract: Compounds of the formula ##STR1## wherein A, B, C and D are each independently --N.dbd. or --CH.dbd., provided, however, that at least two of them must be --N.dbd., and when A and C are both --N.dbd., at least one or both of B and D must be --N.dbd.; andR.sub.1, R.sub.2 and R.sub.3 are substituents of diverse types;tautomers thereof; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds are useful as cardiotonics.
    Type: Grant
    Filed: November 27, 1984
    Date of Patent: April 7, 1987
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Volkhard Austel, Norbert Hauel, Joachim Heider, Manfred Reiffen, Jacobus C. A. Van Meel, Willi Diederen
  • Patent number: RE37035
    Abstract: Phenylacetic acid benzylamides having the following general structure wherein the substituents are defined herein, are disclosed, which compounds are hypoglcemic agents.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: January 30, 2001
    Assignee: Boehringer Ingelheim KG
    Inventors: Wolfgang Grell, Rudolf Hurnaus, Gerhart Griss, Robert Sauter, Manfred Reiffen, Eckhard Rupprecht