Patents by Inventor Frederic Jentgen

Frederic Jentgen 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).

  • Patent number: D324994
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: March 31, 1992
    Assignee: L'Oreal S.A.
    Inventor: Frederic Jentgen
  • Patent number: D430805
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: September 12, 2000
    Assignee: Saint-Gobain Desjonqueres
    Inventor: Frederic Jentgen