Patents by Inventor Hartmund Wollweber

Hartmund Wollweber 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: 5955482
    Abstract: The present invention relates to the use of 1,4-dihydropyridine-3,5-dicarboxylic acid esters, some of which are known, of the general formula (I) ##STR1## in which A and R.sup.1 -R.sup.3 have the meaning given in the description, as medicaments, in particular for treatment of the central nervous system, and new selected active compounds.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: September 21, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Urbahns, Otto Behner, Siegfried Goldmann, Hans-Georg Heine, Bodo Junge, Rudolf Schohe-Loop, Egbert Wehinger, Hartmund Wollweber, Henning Sommermeyer, Thomas Glaser, Reilinde Wittka, Jean-Marie-Viktor de Vry
  • Patent number: 5665741
    Abstract: The present invention relates to the use of 1,4-dihydropyridine-3,5-dicarboxylic acid esters, some of which are known, of the general formula (I) ##STR1## in which A and R.sup.1 -R.sup.3 have the meaning given in the description, as medicaments, in particular for treatment of the central nervous system, and new selected active compounds.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: September 9, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Urbahns, Otto Behner, Siegfried Goldmann, Hans-Georg Heine, Bodo Junge, Rudolf Schohe-Loop, Egbert Wehinger, Hartmund Wollweber, Henning Sommermeyer, Thomas Glaser, Reilinde Wittka, Jean-Marie-Viktor de Vry
  • Patent number: 5652264
    Abstract: The cyclohexadiene derivatives are prepared by reaction of cyclohexanones with amines and subsequent dehydration. The compounds are effective in the treatment of depression on account of their property of being selective modulators of calcium channel-dependent potassium channels.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: July 29, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Urbahns, Hans-Georg Heine, Bodo Junge, Rudolf Schohe-Loop, Hartmund Wollweber, Henning Sommermeyer, Thomas Glaser, Reilinde Wittka, Jean-Marie-Viktor De Vry
  • Patent number: 5559139
    Abstract: The invention relates to the new dimethyl 4-(4-chloro-3-trifluoromethylphenyl) -1-cyclopropyl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate, a process for its preparation and its use as a medicament in ischaemic diseases which are associated with disorders of the microcirculation. This action can occur both in the peripheral and in the cerebral vascular system.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: September 24, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Behner, Hartmund Wollweber, Bruno Rosen, Siegfried Zaiss, Siegfried Goldmann
  • Patent number: 5530014
    Abstract: The cyclohexadiene derivatives are prepared by reaction of cyclohexanones with amines and subsequent dehydration. The compounds are suitable as active compounds in medicaments on account of their property of being selective modulators of calcium channel-dependent potassium channels.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: June 25, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Urbahns, Hans-Georg Heine, Bodo Junge, Rudolf Schohe-Loop, Hartmund Wollweber, Henning Sommermeyer, Thomas Glaser, Reilinde Wittka, Jean-Marie-Viktor De Vry
  • Patent number: 5342847
    Abstract: The invention relates to the new dimethyl 2,6-dimethyl-1-n-propyl-4-(trifluoro-methylphenyl)-1,4-dihydropyridine-3-d icarboxylate, a process for its preparation and its use as a medicament in ischaemic diseases which are associated with disorders of the microcirculation. This action can occur both in the peripheral and in the cerebral vascular system.
    Type: Grant
    Filed: January 16, 1993
    Date of Patent: August 30, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Behner, Hartmund Wollweber, Siegfried Goldmann, Bruno Rosen, Siegfried Zaiss
  • Patent number: 5328931
    Abstract: N-alkylated 1,4-dihydropyridinedicarboxylic acid esters can be prepared either by reaction of aldehydes with acetoacetic esters and amines, optionally with isolation of the corresponding ylidene compounds, or by reaction of aminocrotonic acid esters with ylidene compounds and subsequent alkylation of the NH function. The N-alkylated 1,4-dihydropyridinedicarboxylic acid esters can be employed as active compounds in medicaments, in particular as cerebral therapeutics.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: July 12, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bruno Rosen, Siegfried Zaiss, Hartmund Wollweber, Maarten de Jonge, Hans-Georg Dellweg
  • Patent number: 4935409
    Abstract: Animal growth promoters of the formula ##STR1## The intermediates of the formula ##STR2## are also new.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: June 19, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Jurgen Stoltefuss, Friedrich Berschauer
  • Patent number: 4904679
    Abstract: Pyrrolophenylalkanolamines of the formula ##STR1## R.sup.1 and R.sup.2 represent hydrogen or various radicals, R.sup.3 represents hydrogen, acyl or trialkylsilyl,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents hydrogen, or, together with R.sup.3, represents ##STR2## wherein R.sup.7 represents hydrogen or alkyl, andR.sup.6 represents branched or cyfclic alkyl, which is optionally substituted,and salts thereof promote the yield of animals. Many new intermediates are also shown.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: February 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Jurgen Stoltefuss, Friedrich Berschauer, Ann de Jong, Martin Scheer
  • Patent number: 4353913
    Abstract: The invention relates to 2-benzimidazolylcarbamic acid esters, substituted on the benzenoid nucleus by an aminoalkoxy, aminoalkylthio, an aminoalkylsulphinyl or an aminoalkylsulphonyl grouping. The invention also includes methods for making the compounds of the invention, compositions containing said compounds and the use of said compounds and compositions as anthelmintic agents.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: October 12, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Heinrich Kolling, Herbert Thomas, Peter Andrews
  • Patent number: 4287199
    Abstract: The invention relates to 2-benzimidazolylcarbamic acid esters, substituted on the benzenoid nucleus by an aminoalkoxy, aminoalkylthio, an aminoalkylsulphinyl or an aminoalkylsulphonyl grouping. The invention also includes methods for making the compounds of the invention, compositions containing said compounds and the use of said compounds and compositions as anthelminitic agents.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: September 1, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Heinrich Kolling, Herbert Thomas, Peter Andrews
  • Patent number: 4247546
    Abstract: The invention includes phosphonylureidobenzene compounds of the general formula ##STR1## or pharmaceutically acceptable salts in whichR.sup.1 and R.sup.2 are identical or different and represent an alkyl group, orR.sup.1 and R.sup.2 together represent a dimethylene group, a trimethylene group or a tetramethylene group,X and Y are identical or different and represent an oxygen atom or a sulphur atom andR.sup.3 and R.sup.4 are identical or different and represent an alkyl group, orR.sup.3 and R.sup.4 together represent a trimethylene group or a tetramethylene group, orR.sup.3 and R.sup.4, together with the carbon atom and nitrogen atom between them, form a thiazolidine ring system, which are used medicinally as parasiticides.The compounds are particularly effective in combatting helminths in carnivores.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: January 27, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Herbert Thomas, Peter Andrews
  • Patent number: 4246260
    Abstract: The invention relates to new substituted o-phenylenediamine derivatives of the general formula ##STR1## in which R represents optionally substituted alkyl, optionally substituted alkenyl or optionally substituted alkinyl,X represents O, S, SO or SO.sub.2 andR.sup.1 and R.sup.2 are different from one another and individually represent ##STR2## in which R.sup.3 and R.sup.4 are identical or different and represent alkyl andR.sup.5 represents hydrogen, optionally substituted alkyl or optionally substituted alkoxy, and salts thereof.Also included in the invention are (1) methods for preparing the above-described compounds, (2) compositions containing the above-described compounds and (3) methods for the treatment of helminthiasis.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: January 20, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Kolling, Ekkehard Niemers, Hartmund Wollweber, Herbert Thomas
  • Patent number: 4194004
    Abstract: Novel substituted benzenesulphonic acid esters, particularly useful as anthelmintics are provided. The novel compounds are those of the general formula ##STR1## in which R represents hydrogen, optionally substituted alkyl, cyano, alkoxy, halogen, trifluoromethyl, amino, acylamino or nitro,X represents SO.sub.3 andR.sup.1 and R.sup.2 are different from one another and individually represent one of the radicals ##STR2## wherein Y represents S andR.sub.3 represents hydrogen, optionally substituted alkyl or alkoxy,and salts thereof. Also included in the invention are methods for preparing the novel compounds, compositions containing them and methods for the use of the compounds and compositions.
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: March 18, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ekkehard Niemers, Hartmund Wollweber, Heinrich Kolling, Herbert Thomas
  • Patent number: 4127670
    Abstract: N-(2-formamidophenyl)-N',N"-bis-carbonylguanidines bearing an optionally substituted phenoxy, phenylthio, phenylsulfinyl or phenylsulfonyl group in the 4- or 5-position of the 2-(formamido)-phenyl group are anthelminetic agents. The compounds, of which N-(2-formamido-4-phenylthiophenyl)-N',N"-bis-carbomethoxyguanidine is a typical example, are prepared through the reaction of isothiourea-S-alkyl ether and an appropriately substituted 2-aminoformanilide.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: November 28, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Heinrich Kolling, Herbert Thomas
  • Patent number: 4088780
    Abstract: N-[2-(Substituted amido)phenyl]-N',N"-bis-carbonylguanidines bearing an optionally substituted phenoxy, phenylthio, phenylsulfinyl or phenylsulfonyl group in the 4- or 5-position of the 2-(substituted amido)-phenyl group are anthelmintic agents. The compounds, of which N-(2-acetamido-4-phenylthiophenyl)-N',N"-bis-carbomethoxyguanidine is a typical example, are prepared through the reaction of isothiourea-S-alkyl ether and an appropriately substituted 2-aminoanilide.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: May 9, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Kolling, Herbert Thomas, Arno Widdig, Hartmund Wollweber
  • Patent number: 4070494
    Abstract: Enteral pharmaceutical compositions containing medicinal agents having parenteral abuse potential are rendered resistant to aqueous extraction through the incorporation of a sufficient amount of a nontoxic, water gelable material. Attempts to extract the medicinal agent for parenteral abuse are thus inhibited or prevented since the material gels in the presence of water leaving no filterable liquid.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: January 24, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Friedrich Hoffmeister, Rudolf Hiltmann, Hartmund Wollweber, Helmut Kramer
  • Patent number: 4064270
    Abstract: A new class of N'-(aminoacylaminophenyl) acetamidines: ##STR1## in which R.sup.1 and R.sup.2 are the same or different and represent hydrogen, alkyl, aryl or the substituted derivatives thereof or, together with the nitrogen atom to which they are attached, an heterocyclic ring; and R.sup.3 is hydrogen, alkyl, aryl, aralkyl, or a heterocyclic moiety including the substituted derivatives thereof. The products have utility as anthelmintics.The products are obtained by treating a suitable amino-acid or a carbonyl-activated amino-acid, with the appropriate N'-(4-aminophenyl)-N,N-dimethylacetamidine. In addition, the products are obtained by treating a suitable N'-(haloacylaminophenylacetamidine with an appropriate amine.
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: December 20, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmund Wollweber, Ekkehard Niemers, Hans Peter Schulz, Herbert Thomas, Peter Andrews
  • Patent number: 4032655
    Abstract: N-[2-(Substituted amido)phenyl]-N',N"-bis-carbonylguanidines bearing an optionally substituted phenoxy, phenylthio, phenylsulfinyl or phenylsulfonyl group in the 4- or 5-position of the 2-(substituted amido)phenyl group are anthelmintic agents. The compounds, of which N-(2-acetamido-4-phenylthiophenyl)-N',N"-bis-carbomethoxyguanidine is a typical example, are prepared through the reaction of isothiourea-S-alkyl ether and an appropriately substituted 2-aminoanilide.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: June 28, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Kolling, Herbert Thomas, Arno Widdig, Hartmund Wollweber
  • Patent number: 4024176
    Abstract: N-[2-(Substituted amido)phenyl]-N',N"-bis-carbonylguanidines bearing an optionally substituted phenoxy, phenylthio, phenylsulfinyl or phenylsulfonyl group in the 4- or 5-position of the 2-(substituted amido)-phenyl group are anthelmintic agents. The compounds, of which N-(2-acetamido-4-phenylthiophenyl)-N',N"-bis-carbomethoxyguanidine is a typical example, are prepared through the reaction of isothiourea-S-alkyl ether and an appropriately substituted 2-aminoanilide.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: May 17, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Kolling, Herbert Thomas, Arno Widdig, Hartmund Wollweber