Patents by Inventor Peter T. K. Shih

Peter T. K. Shih 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).

  • Windshield wiper blade treatment
    Patent number: 3997935
    Abstract: Windshield wiper blades which have been previously treated with a halogen are subjected to treatment with a solution selected from the group of those having a pH above about 12 and those having a pH between 7 and 12 and a cation concentration of at least -0.09 pH + 1.13 moles per liter where pH is the pH of the solution whereby improved wipe and wear properties are obtained.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: December 21, 1976
    Assignee: Acushnet Company
    Inventors: Raymond P. Porter, Kenneth L. Manchester, Peter T. K. Shih