Patents by Inventor Artur V. Valdman

Artur V. Valdman 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).

  • N-acyl-4-phenyl-pyrrolidin-2-ones and method for preparing
    Patent number: 5441973
    Abstract: The invention is directed to N-acetyl-4-phenyl-pyrrolidin-2-ones, which, because of their pronounced cerebroprotective effect in human medicine, can be used for the prophylaxis and treatment of cerebral functional disorders. Pursuant to the invention, these compounds are synthesized by reacting 4-phenyl-pyrrolidin-2-ones with a reactive derivative of a carboxylic acid, or by cyclizing N-acylaminobutyric acid derivatives.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: August 15, 1995
    Assignee: Arzneimittelwerk Dresden G.m.b.H.
    Inventors: Lothar Zenker, Helmut Wunderlich, Dieter Lohmann, Angelika Rostock, Christine Siegemund, Artur V. Valdman, Tatjana A. Voronina, Ilmira C. Rachmankulova, Oleg M. Glozman, Taisija L. Garibova, Larisa M. Mescerjakova, Ljudmila A. Zmurenko, Sergej B. Seredenin, Grigorij G. Rozancev