Patents by Inventor Ethan Thorman

Ethan Thorman 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).

  • End-of-life bulb circuitry
    Patent number: 9107273
    Abstract: An LED light bulb which turns itself permanently off when it reaches the end of its useful life, and more particularly, to a scheme which slightly varies the end-of-life condition from unit to unit.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: August 11, 2015
    Assignee: Switch Bulb Company, Inc.
    Inventors: Ronald J. Lenk, Carol Lenk, Ethan Thorman
  • END-OF LIFE CIRCUITRY
    Publication number: 20110210669
    Abstract: An LED light bulb which turns itself permanently off when it reaches the end of its useful life, and more particularly, to a scheme which slightly varies the end-of-life condition from unit to unit.
    Type: Application
    Filed: September 8, 2009
    Publication date: September 1, 2011
    Applicant: Switch Bulb Company, Inc.
    Inventors: Ronald J. Lenk, Carol Lenk, Ethan Thorman