Patents by Inventor Chong-Ping P. Chou

Chong-Ping P. Chou 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: 5497550
    Abstract: A shaving system with a blade member with a cutting edge of wedge shape that is defined by main facets with an included facet angle in the range of 10.degree.-17.degree. in the region forty micrometers from the cutting edge. The blade is mounted between leading and trailing skin-engaging surfaces so that the blade tangent angle is less than 20.degree. and the interior main facet of the blade is disposed at an angle of more than 150.degree. to a reference line that extends from the cutting edge of the blade to the skin-engaging point next forward of the blade edge.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: March 12, 1996
    Assignee: The Gillette Company
    Inventors: Robert A. Trotta, Steve S. Hahn, John Madeira, Chong-ping P. Chou, Lamar E. Brooks
  • Patent number: 5142785
    Abstract: A razor blade includes a substrate with a wedge-shaped edge, a layer of molybdenum on the tip and flanks of the wedge-shaped edge, the thickness of the molybdenum layer preferably being in the range of about 50-500 angstroms, and a layer of diamond or diamond-like material on the molybdenum layer that preferably has a thickness of about 200-1,500 angstroms and that defines a tip radius of less than about 1000 angstroms.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 1, 1992
    Assignee: The Gillette Company
    Inventors: Manohar S. Grewal, Chong-Ping P. Chou