Patents by Inventor Berend J. Van Keulen

Berend J. Van Keulen 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).

  • Substituted cyclopropylamino-1,3,5-triazines
    Patent number: 5348956
    Abstract: New substituted cyclopropylamino-1,3,5-triazines having the formula ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.3 -alkyl, C.sub.3 -C.sub.5 -cycloalkyl or C.sub.1 -C.sub.3 -alkyl-C.sub.3 -C.sub.5 -cycloalkylR.sub.2 is bis(2-hydroxyethyl)amino, 3-hydroxy-1-azetidinyl, 3-methoxy-1-azetidinyl, 3-oxo-1-azetidinyl, morpholino, 4-hydroxypiperidino, thiomorpholino, thiomorpholino S-oxide, thiomorpholino S,S-dioxide, 3-thiazolidinyl, 3-thiazolidinyl S-oxide, 3-thiazolidinyl S,S-dioxide or 8-oxa-3-azabicyclo[3,2,1]oct-3-yl. Processes for the preparation thereof and pharmaceutical composition containing them are also given. The compounds are useful for the treatment of inflammation and asthma.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: September 20, 1994
    Assignee: UCB S.A.
    Inventors: Berend J. Van Keulen, Solo Goldstein, Eric Cossement, Jean Gobert, Ernst Wulfert