Patents by Inventor Ernst-Peter Krebs

Ernst-Peter Krebs 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).

  • Treatment of gastric ulcers with naphthimidazole derivatives
    Patent number: 4248880
    Abstract: Imidazole derivatives of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X and n are as hereinafter set forth,and pharmaceutically acceptable acid addition salts thereof, are described. The compounds of formula I are useful in the treatment of gastric ulcers.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: February 3, 1981
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Anna Krasso, Ernst-Peter Krebs
  • Naphth[2,3-d]imidazoles
    Patent number: 4182766
    Abstract: Imidazole derivatives of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 R.sub.4, R.sub.5, X and n are as hereinafter set forth,and pharmaceutically acceptable acid addition salts thereof, are described. The compounds of formula I are useful in the treatment of gastric ulcers.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: January 8, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Anna Krasso, Ernst-Peter Krebs