Patents by Inventor Edwin M. Wheeler

Edwin M. Wheeler 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).

  • Transparent films providing a barrier to the transmission of ultra-violet light
    Patent number: 5391609
    Abstract: A transparent polymeric film that provides a barrier to the transmission of ultra-violet light. The film results from the addition of titanium dioxide particles having an average particle size less than the wavelength of visible light, yet greater than the wavelength of ultra-violet light, to a polymeric material capable of being formed as a transparent film. More specifically, the titanium dioxide particles have an average size on the order of from about 0.010 .mu.m to 0.050 .mu.m and, preferably from about 0.018 .mu.m to 0.040 .mu.m.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: February 21, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Anthony R. Knoerzer, Leland W. Reid, Edwin M. Wheeler