Patents by Inventor Joseph P. Dempewolf

Joseph P. Dempewolf 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).

  • Patent number: 5936777
    Abstract: An optical coupler is provided that comprises a single lens component, comprising two axially-graded index of refraction elements, each having a low refractive index surface and a high refractive index surface and joined along their respective high refractive index surfaces. As configured, the optical coupler is useful as a solar concentrator for concentrating solar radiation onto a solar cell or other solar-receptive medium.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 10, 1999
    Assignee: LightPath Technologies, Inc.
    Inventor: Joseph P. Dempewolf