Patents by Inventor Steven J. Powell

Steven J. Powell 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).

  • Publication number: 20080318688
    Abstract: Systems and methods for facilitating competition are provided. According to an embodiment of the present invention, competition is facilitated by combining competition results from competition-event-segments across competition events conducted at different event locations.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 25, 2008
    Inventor: Steven J. Powell
  • Patent number: 5932403
    Abstract: A color negative photographic element is disclosed comprising at least one light-sensitive image dye-forming unit containing a plural number of silver halide emulsion layers having different levels of photographic sensitivity which are spectrally sensitized to the same color region, wherein the silver halide emulsion layer having the highest level of photographic sensitivity of the unit comprises at least 40 wt %, with respect to total silver halide in the layer, of a first silver halide emulsion comprising silver halide grains with an average equivalent circular diameter represented by ECD.sub.1 and from 5 to 35 wt % of a second silver halide emulsion comprising silver halide grains with an average equivalent circular diameter represented by ECD.sub.2, and the silver halide emulsion layer having the second highest level of photographic sensitivity comprises at least 40 wt % of a third silver halide emulsion having an average equivalent circular diameter represented by ECD.sub.3, where the ratio of ECD.sub.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: August 3, 1999
    Assignee: Eastman Kodak Company
    Inventors: Steven J. Powell, John F. Sawyer
  • Patent number: D337075
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: July 6, 1993
    Inventor: Steven J. Powell