Patents by Inventor Erkki A. O. Nissenen

Erkki A. O. Nissenen 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).

  • Use of catechol-O-methyl transferase (COMT) inhibitors and their physiologically acceptable salts for ulcer treatment
    Patent number: 5001152
    Abstract: The invention is concerned with the new use of known catechol derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, alkyl having 1 to 4 carbon atoms or alkanoyl having 2 to 5 carbon atoms; X is nitro, halogen or cyano and R.sub.3 is chlorine, nitro, cyano or a radical of the formula ##STR2## wherein R.sub.4 is hydrogen, cyano, alkyl having 1 to 4 carbon atoms or alkanoyl having 2 to 5 carbon atoms and R.sub.5 is cyano, alkanoyl having 2 to 5 carbon atoms, hydroxyalkyl having 1 to 4 carbon atoms, carboxyl or phenylcarbonyl unsubstituted or substituted with one to three methoxy groups or pharmaceutically acceptable salt thereof. The new use is the treatment and prophylaxis of ulcers and lesions in the gastrointestinal tract.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: March 19, 1991
    Assignee: Orion Corporation Ltd.
    Inventors: Paivi A. Aho, Pentti Pohto, Inge-Britt Y. Linden, Reijo J. Backstrom, Erkki J. Honkanen, Erkki A. O. Nissenen