Patents by Inventor Leon Christiaens

Leon Christiaens 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).

  • Diselenobis-benzoic acid amides of primary and secondary amines and processes for the treatment of diseases in humans caused by a cell injury
    Patent number: 4873350
    Abstract: The present invention relates to new diselenobis-benzoic acid amides of primary and secondary amines of the general formula (I): ##STR1## and processes for the treatment of diseases in humans caused by a cell injury.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: October 10, 1989
    Assignee: A Nattermann & CIE GmbH
    Inventors: Andre Welter, Harmut Fischer, Leon Christiaens, Albrecht Wendel, Eugen Etschenberg, Norbert Dereu, Peter Kuhl, Eric Graf
  • Benzisoselenazolones and process for the treatment of rheumatic and arthritic diseases using them
    Patent number: 4418069
    Abstract: The present invention is related to new benzisoselenazolones having the general formula I ##STR1## new products having the general formula II ##STR2## used as intermediary products in the production of the compounds of formula I and a method for the treatment of rheumatic diseases using a compound of formula I as active agent.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: November 29, 1983
    Assignee: A. Nattermann & Cie GmbH
    Inventors: Andre Welter, Leon Christiaens, Ferdinand Wirtz-Peitz