Patents by Inventor Peter W. Coldrey

Peter W. Coldrey 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).

  • Color-neutral UV blocking coating for plastic lens
    Patent number: 5949518
    Abstract: Polymeric coatings containing both UV absorbers and dyes are employed to produce transparent, durable film coatings that can significantly increase the level of UV radiation blockage when coated onto substrates including ophthalmic lenses. The dye comprises 1-?(4-methylphenyl)amino!-4-hydroxy-9, 10-anthracenedione. The color-neutral film coatings are resistant to weather and UV degradation.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: September 7, 1999
    Assignee: Sola International, Inc.
    Inventors: Hector Belmares, Peter W. Coldrey, Lani Sherwood, Sundar Ram