Patents by Inventor Gerard M. J. Beijersbergen van Henegouwen

Gerard M. J. Beijersbergen van Henegouwen 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).

  • Cosmetic and dermatological sunscreen compositions containing thiols and/or thiol derivates
    Patent number: 5728373
    Abstract: Cosmetic and dermatological light protection formulations, characterized by an active content of thiols and/or thiol derivatives.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: March 17, 1998
    Assignees: Beiersdorf AG, Rijksuniversiteit Leiden
    Inventors: Dirk Alert, Heinrich Gers-Barlag, Leon T. Van Den Broeke, Gerard M. J. Beijersbergen van Henegouwen