Patents by Inventor Lucien Welin

Lucien Welin 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).

  • Alpha-amino acid compounds
    Patent number: 5585390
    Abstract: Compounds of the general formula: ##STR1## wherein m, X, Y, A, R.sub.2 and R.sub.3 are defined in the description, and medicaments containing the same.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: December 17, 1996
    Assignee: Adir Et Compagnie
    Inventors: Muriel Duflos, Sylvie Robert-Piessard, Lucien Welin, Guillaume Le Baut, Daniel-Henri Caignard, Pierre Renard, G erard Adam
  • .alpha.-amino acid compounds
    Patent number: 5470864
    Abstract: Compounds of the general formula: ##STR1## wherein m, X, Y, A, R.sub.2 and R.sub.3 are defined in the description.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: November 28, 1995
    Assignee: Adir et Compagnie
    Inventors: Muriel Duflos, Sylvie Robert-Piessard, Lucien Welin, Guillaume Le Baut, Daniel-Henri Caignard, Pierre Renard, Gerard Adam