Patents by Inventor Richard Sewell

Richard Sewell 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).

  • Monolithicallly integrated IR imaging using rare-earth up conversion materials
    Publication number: 20100038541
    Abstract: Infrared imaging at wavelengths longer than the silicon bandgap energy (>1100 nm) typically require expensive focal plane arrays fabricated from compound semiconductors (InSb or HgCdTe) or use of slower silicon microbolometer technology. Furthermore, these technologies are available in relatively small array sizes, whereas silicon focal plane arrays are easily available with 10 megapixels or more array size. A new technique is disclosed to up convert infrared light to wavelengths detectable by silicon focal plane arrays, or other detector technologies, thereby enabling a low-cost, high pixel count infrared imaging system.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 18, 2010
    Applicant: TRANSLUCENT, INC.
    Inventors: Andrew Clark, Robin Smith, Richard Sewell, Scott Semans
  • Dispenser bin
    Patent number: D345085
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: March 15, 1994
    Inventor: Richard Sewell