Patents by Inventor Georg Tschank

Georg Tschank 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: 5512586
    Abstract: The invention relates to pyridine-2,4- and -2,5-dicarboxylic acid derivatives of the formula I ##STR1## in which R.sup.1, R.sup.2, 3.sup.3, R.sup.4 and X have the meanings given, a process for the preparation of these compounds and their use, in particular in medicaments for influencing the metabolism of collagen and collagen-like substances or the biosynthesis of Cl.sub.q.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: April 30, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Bickel, Dietrich Brocks, Harald Burghard, Volkmar Gunzler, Stephan Henke, Hartmut Hanauske-Abel, Jurgen Mohr, Georg Tschank
  • Patent number: 5153208
    Abstract: The invention relates to pyridine-2,4- and -2,5-dicarboxylic acid derivatives of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and X have the meanings given, a process for the preparation of these compounds and their use, in particular in medicaments for influencing the metabolism of collagen and collagen-like substances or the biosynthesis of Cl.sub.q.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: October 6, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Bickel, Dietrich Brocks, Harald Burghard, Volkmar Gunzler, Stephan Henke, Hartmut Hanauske-Abel, Jurgen Mohr, Georg Tschank
  • Patent number: 5037839
    Abstract: The invention relates to pyridine-2,4- and -2,5-dicarboxylic acid derivatives of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and X have the meanings given, a process for the preparation of these compounds and their use, in particular in medicaments for influencing the metabolism of collagen and collagne-like substances or the biosynthesis of Cl.sub.q.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: August 6, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Bickel, Dietrich Brocks, Harald Burghard, Volkmar Gunzler, Stephan Henke, Hartmut Hanauske-Abel, Jurgen Mohr, Georg Tschank
  • Patent number: 4717727
    Abstract: Esters of pyridine-2,4- and -2,5-dicarboxylic acid act as inhibitors of proline hydroxylase and lysine hydroxylase and are suitable as fibrosuppressants and immunosuppressants, in particular for the treatment of disturbances of the metabolism of collagen and collagen-like substances and of the biosynthesis of Cl.sub.q.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: January 5, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Volkmar Gunzler, Hartmut Hanauske-Abel, Jurgen Mohr, Georg Tschank, Kari Kivirikko, Kari Majamaa, Dietrich Brocks