Patents by Inventor Lucien F. A. Douven

Lucien F. A. Douven 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).

  • Shaving apparatus
    Patent number: 6082003
    Abstract: A shaving apparatus has a head assembly (2) which houses rotary cutters (8), and guards (4) which are provided with an annular series of hair-entry apertures (6). A fixed supporting surface is provided inside and outside the ring of apertures, to provide support when shaving with large applied pressure.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: July 4, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Lucien F. A. Douven, Simon E. Kadijk, Hendrik Poel