Patents by Inventor Willliam R. Pilgrim

Willliam R. Pilgrim 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).

  • Di(aromatic) compounds and their use in human and veterinary medicine and in cosmetics
    Patent number: 5439925
    Abstract: Di(aromatic) compounds corresponding to the following formula: ##STR1## in which: Ar represents either ##STR2## n=1 or 2 or: ##STR3## X represents a divalent radical, Z represents O, S or a divalent radical, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent a hydrogen atom or various organic radicals, and the salts of the compounds of formula (I) when R.sub.1 is a carboxylic acid function. Use is in human and veterinary medicine and in cosmetics.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: August 8, 1995
    Assignee: Centre International de Recherches Dermatologiques Galderma (Cird Galderma)
    Inventors: Jean-Michel Bernardon, Willliam R. Pilgrim