Patents by Inventor Christine L. Lau

Christine L. Lau 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).

  • Polymeric nitrones having an acrylic backbone chain
    Patent number: 5273863
    Abstract: Homopolymers and copolymers with an acrylic backbone chain having pendant side-chains containing a nitrone functional group undergo change in refractive index upon exposure to actinic radiation. Waveguides are "written" in films containing such polymers by exposing predetermined areas to sufficient actinic radiation to change the refractive index.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: December 28, 1993
    Assignee: AlliedSignal Inc.
    Inventors: Keith A. Horn, Christine L. Lau
  • Polymeric nitrones having a styrene-derived backbone chain
    Patent number: 5219710
    Abstract: Polymer compositions having a styrene-derived backbone chain and having pendant side chains containing a nitrone functional group undergo changes in refractive index upon exposure to actinic radiation. Waveguides are "written" in films containing such polymers by exposing predetermined areas to sufficient radiation to change the refractive index.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: June 15, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Keith A. Horn, Christine L. Lau
  • Polymeric nitrones having an acrylic backbone chain
    Patent number: 5176983
    Abstract: Homopolymers and copolymers with an acrylic backbone chain having pendant side-chains containing a nitrone functional group undergo change in refractive index upon exposure to actinic radiation. Waveguides are "written"in films containing such polymers by exposing predtermined areas to sufficient actinic radiation to change the refractive index.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: January 5, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Keith A. Horn, Christine L. Lau