Patents by Inventor Steven R. Spearman

Steven R. Spearman 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).

  • Method and apparatus for determining sunlight exposure
    Publication number: 20030008409
    Abstract: A method and apparatus for determining the amount of sunlight a certain location receives in a given time, wherein the device incorporates photochromic dyes that are coated, applied or impregnated on the device substrate, and wherein each dye possesses different levels of activation for indication of different amounts of sunlight received.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Inventors: Steven R. Spearman, Scott Kevin Spearman