Patents by Inventor Dipak Biswas

Dipak Biswas 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).

  • Fiber optic light diffuser
    Patent number: 5363458
    Abstract: Heat and light generating, fiber optic, cylindrical diffusers are structured to operate more efficiently and with increased uniformity by the inclusion of rings of prescribed indicies of refraction about the unclad distal end portion of the diffuser. Such a diffuser also includes a conical distal tip. A sealed Teflon (TM) sleeve containing diffusing material in place over the entire length of the diffuser also improves the uniformity of heat distribution.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: November 8, 1994
    Assignee: Fiber guide Industries
    Inventors: Anpei Pan, Dipak Biswas