Patents by Inventor Gerald W. Hietala

Gerald W. Hietala 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).

  • Contact lens cleaning system
    Patent number: 5071276
    Abstract: A device for cleaning contact lenses is disclosed which has a tubular or pen-like reservoir having an abradant tip having an external surface which is complementary to the general shape of a surface of a contact lens. A lens support member for supporting a contact lens during the cleaning process is also disclosed.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: December 10, 1991
    Assignee: Abbott Laboratories
    Inventors: Randolph D. Nielsen, Gerald W. Hietala, Clarence J. Endicott