Patents by Inventor Benthold Narr

Benthold Narr 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).

  • Quaternary 3,4-dihydro-isoquinolinium salts
    Patent number: 4678792
    Abstract: This invention relates to a compound of formula (I) ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy; and R.sub.3 is a C.sub.7 -C.sub.9 aralkyl, the phenyl nucleus of which can be mono-, di-, or trisubstituted by halogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, and nontoxic, pharmaceutically acceptable salts thereof. The compounds have useful antithrombic properties.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: July 7, 1987
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Josef Nickl, Erich Muller, Benthold Narr, Helmut Ballhause, Walter Haarmann