Patents by Inventor Claus Ehrhardt

Claus Ehrhardt 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: 6645970
    Abstract: Indolylmaleimide derivatives comprising either a substituted phenyl, naphthyl, tetrahydronaphthyl, quinazolinyl, quinolyl, isoquinolyl or pyrimidinyl residue have interesting pharmaceutical properties, e.g. in the treatment and/or prevention of T-cell mediated acute or chronic inflammatory diseases or disorders, autoimmune diseases, graft rejection or cancer.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: November 11, 2003
    Assignee: Novartis AG
    Inventors: Rainer Albert, Nigel Graham Cooke, Sylvain Cottens, Claus Ehrhardt, Jean-Pierre Evenou, Richard Sedrani, Peter Von Matt, Jürgen Wagner, Gerhard Zenke
  • Patent number: 6642225
    Abstract: Compounds of formula I wherein R is carboxy, esterified carboxy or amidated carboxy; R1 and R3 are independently lower alkyl, (hydroxy, lower alkoxy, amino, acylamino, mono- or di-lower alkylamino or mercapto)-lower alkyl, lower alkyl-(thio, sulfinyl or sulfonyl)-lower alkyl, cycloalkyl, aryl, biaryl, (cycloalkyl, aryl or biaryl)-lower alkyl, or (carboxy, esterified carboxy or amidated carboxy)-lower alkyl; R2 is hydrogen, lower alkyl, cycloalkyl, aryl, biaryl, arylaminocarbonyl, or aryl-(oxy, thio or amino); n is 1 or 2; Y is lower-alkylene or lower alkenylene; and pharmaceutically acceptable salts thereof; which are useful as LFA-1 antagonists.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: November 4, 2003
    Assignee: Novartis AG
    Inventors: Rainer Albert, Janet Dawson, Claus Ehrhardt, Sompong Wattanasin, Gabriele Weitz-Schmidt, Karl Welzenbach
  • Publication number: 20030087903
    Abstract: Mevinolin derivatives wherein the lactone ring is modified have interesting pharmaceutical properties, particularly in preventing or treating disorders or diseases mediated by LFA-1/ICAM-1 interactions.
    Type: Application
    Filed: July 11, 2002
    Publication date: May 8, 2003
    Inventors: Rolf Baenteli, Wilfried Bauer, Sylvain Cottens, Claus Ehrhardt, Ulrich Hommel, Jorg Kallen, Josef Gottfried Meingassner, Francois Nuninger, Gabriele Weitz Schmidt
  • Publication number: 20030069424
    Abstract: Indolylmaleimide derivatives comprising either a substituted phenyl, naphthyl, tetrahydronaphthyl, quinazolinyl, quinolyl, isoquinolyl or pyrimidinyl residue have interesting pharmaceutical properties, e.g. in the treatment and/or prevention of T-cell mediated acute or chronic inflammatory diseases or disorders, autoimmune diseases, graft rejection or cancer.
    Type: Application
    Filed: November 5, 2001
    Publication date: April 10, 2003
    Inventors: Rainer Albert, Nigel Graham Cooke, Sylvain Cottens, Claus Ehrhardt, Jean-Pierre Evenou, Richard Sedrani, Peter Von Matt, Jurgen Wagner, Gerhard Zenke
  • Patent number: 6399599
    Abstract: Compounds of formula I wherein n is 1, 2 or 3; R1 is H, C1-4alkyl, aryl, or aryl-C1-4alkyl; Y is C1-4alkylene, —CO—C1-4alkylene, —CO—C2-5alkenylene, —CO—NH—, —CO—C1-3alkylene-NH—, or —CO—O—; R2 is an aromatic or heteroaromatic residue, each being optionally substituted by CF3, halogen, OH, C1-4alkoxy, amino, mono- or di-C1-4alkyl substituted amino, phenyl, benzyl or C1-4alkyl optionally substituted by amino; R3is the side chain present on the C&agr; of an &agr;-amino acid; R4 is biphenylyl, benzyl, hydroxy-benzyl, &agr;- or &bgr;-naphthyl-methyl, 5,6,7,8-tetrahydro-&bgr;-naphthyl-methyl or indolyl-methyl, each being optionally substituted on the ring by CF3, halogen, OH, C1-4alkoxy, amino, mono- or di-C1-4alkyl substituted amino, phenyl, benzyl or C1-4alkyl optionally substituted by amino; and X is —CN, —NR5R6 or —O—R8 wherein R5 is H, C1-6alkyl, aryl or aryl-C1-4alkyl; R6 is H or C1-6alkyl;
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: June 4, 2002
    Assignee: Novartis AG
    Inventors: Rainer Albert, Josef G. Meingassner, Sompong Wattanasin, Gabriele Weitz-Schmidt, Karl Welzenbach, Ulrich Hommel, Claus Ehrhardt, Didier Roche, Joerg Kallen
  • Publication number: 20020061878
    Abstract: Compounds of formula I 1
    Type: Application
    Filed: October 2, 2001
    Publication date: May 23, 2002
    Inventors: Rainer Albert, Janet Dawson, Claus Ehrhardt, Sompong Wattanasin, Gabriele Weitz-Schmidt, Karl Welzenbach
  • Publication number: 20020037895
    Abstract: Mevinolin derivatives wherein the lactone ring is modified have interesting pharmaceutical properties, particularly in preventing or treating disorders or diseases mediated by LFA-1/ICAM-1 interactions.
    Type: Application
    Filed: August 13, 2001
    Publication date: March 28, 2002
    Inventors: Rolf Baenteli, Wilfried Bauer, Sylvain Cottens, Claus Ehrhardt, Ulrich Hommel, Joerg Kallen, Josef Gottfried Meingassner, Francois Nuninger, Gabriele Weitz Schmidt