Patents by Inventor Hao Chiu

Hao Chiu 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).

  • Method for producing laminated photochromic lenses
    Publication number: 20070001327
    Abstract: A method for laminating an optical assembly and the optical assembly formed thereby. An ultra thin lens is injection molded and may include a bifocal feature. A support lens, e.g. of the single vision type, is provided with a photochromic coating. A flexible two stage compound application process prepares the two lenses for lamination.
    Type: Application
    Filed: June 7, 2006
    Publication date: January 4, 2007
    Inventor: Hao Chiu
  • High molecular weight lenses formed from viscosity-specific polycarbonate
    Publication number: 20050245720
    Abstract: Methods are disclosed which utilize polycarbonate to form solid optical lenses. The polycarbonates may be selected from high molecular weight linear or branched species. Viscosity and melt flow are specified for improved mechanical properties. The method provides lenses with greater resistance to cracking and crazing, for example, in instances where flaws are subject to strain and require containment.
    Type: Application
    Filed: April 29, 2004
    Publication date: November 3, 2005
    Inventors: Hsinjin Yang, Hao Chiu