Patents by Inventor Irmgard Lindner

Irmgard Lindner 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).

  • Derivatives of triiodo-aminobenzenecarboxylic acids and the preparation thereof
    Patent number: 4025550
    Abstract: Derivatives of triiodo-aminobenzene carboxylic acids having the general formula: ##STR1## a process for their preparation and X-ray contrast agents containing them.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: May 24, 1977
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Werner Obendorf, Irmgard Lindner, Ernst Schwarzinger, Josef Krieger
  • Phenoxypropylamine derivatives
    Patent number: 3983169
    Abstract: Phenoxypropylamine derivatives of the general formula: ##EQU1## in which R is a hydrogen atom or a straight-chain or branched alkyl group containing up to 10 carbon atoms, R.sub.1 is a hydrogen atom, a straight-chain or branched alkyl group containing up to 10 carbon atoms or a cyclopentyl, cyclohexyl, benzyl or phenyl group or R and R.sub.1 taken together form a pentamethylene-(1,5), tetramethylene-(1,4), 2-azapentamethylene-(1,5), 3-azapentamethylene-(1,5) or 3-oxapentamethylene-(1,5)-group, R.sub.2 is a hydrogen atom or an alkyl group containing up to 6 carbon atoms or a benzyl or phenyl group, R.sub.3 is a branched alkyl group containing 3 to 6 carbon atoms, a cyanoalkyl group containing up to 6 carbon atoms or a cycloalkyl group containing 3 to 7 carbon atoms and R.sub.4 is a hydrogen atom, an alkyl group containing up to 6 carbon atoms or a benzyl group, and the pharmaceutically-acceptable salts thereof having a cardioselective .beta.-blocking action.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: September 28, 1976
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Gerhard Zolss, Heribert Pittner, Heimo Stormann-Menninger-Lerchenthal, Irmgard Lindner