Patents by Inventor David A. Sierawski

David A. Sierawski 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).

  • Screen printable organosiloxane resin coating compositions
    Patent number: 4785041
    Abstract: Thixotropic, silica-filled coating compositions wherein the curable film-forming material is an organosiloxane copolymer resin include a liquid polydiorganosiloxane containing hydroxyl-terminated polyoxypropylene units as the flow control agent. The compositions are particularly useful as screen printable passivation coatings for semiconductor devices.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: November 15, 1988
    Assignee: Dow Corning Corporation
    Inventors: Robert C. Antonen, Diane M. Rasch, David A. Sierawski, David J. Romenesko
  • Method of preventing discoloration of platinum containing silicone gels
    Patent number: 4122246
    Abstract: Mixing vinyl-containing polyorganosiloxane, a silicon-bonded hydrogen containing organosilicon compound, a platinum catalyst, a polysiloxane having at least two silicon-bonded vinyl radicals and at least one silicon-bonded hydroxyl radical and an epoxy-containing, alkoxy silane provides a silicone gel which discolors less on aging than other platinum catalyzed silicone gels.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: October 24, 1978
    Assignee: Dow Corning Corporation
    Inventor: David A. Sierawski