Patents by Inventor Martin McKenzie

Martin McKenzie 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).

  • Waveplate and optical circuit formed from mesogen-containing polymer
    Publication number: 20040013337
    Abstract: Waveplates formed of mesogen-containing polymers and planar lightwave circuits containing such waveplates. Polymers have sidechains containing mesogens such as biphenyl-containing groups. Polymers may have a glass transition temperature between 100 C. and 300 C., and polymers may be stretched in excess of 150% to increase birefringence of polymer and provide thin films. Waveplates formed of stretched polymer films may have high biaxial birefringence.
    Type: Application
    Filed: October 11, 2002
    Publication date: January 22, 2004
    Inventors: Ken Purchase, Martin McKenzie, Lili Huang, Stephen Z. D. Cheng, Frank W. Harris, Jason J. Ge, Dong Zhang