Patents by Inventor Georges H. Wajs

Georges H. Wajs 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).

  • Process for making a soft contact lens of natural proteinaceous polymer(s)
    Patent number: 4650616
    Abstract: A starting solution comprising one or more noncrystalline natural proteinaceous polymers of animal or vegetable origin is molded and gelled in a lens shaped mold and then removed from the mold. Thereafter the gel is crosslinked by immersion in a liquid containing a crosslinking agent.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: March 17, 1987
    Assignee: Essilor International
    Inventor: Georges H. Wajs
  • Method for preparing silicone graft copolymers
    Patent number: 4229273
    Abstract: The invention relates to the preparation of graft copolymers from silicones. The method comprises subjecting an article such as a contact lens previously moulded from silicone resins to an UV irradiation step with radiations of wave-length from 1800 to 4000 angstroms, in the presence of oxygen, and in a subsequent step contacting said article with an unsaturated monomer compound at a temperature sufficient to ensure the grafting of said compound on the silicone resin.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: October 21, 1980
    Assignee: Essilor International Compagnie Generale d'Optique
    Inventor: Georges H. Wajs