Patents by Inventor William Ramsdell

William Ramsdell 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).

  • Solar-powered lighting system
    Patent number: 11802672
    Abstract: The invention herein disclosed is a solar-powered lighting system optimized to convert light energy into electrical energy, store that electrical energy during daylight hours, and use stored electrical energy to power an LED light source during darkness hours.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: October 31, 2023
    Inventor: William Ramsdell
  • Floating subsurface illumination system
    Patent number: 11493195
    Abstract: The invention is a floating subsurface illumination system comprising a leak-proof enclosure, DC electric energy subsystem, LED light source subsystem, translucent diffuser, tethering eyelet, switch and charging port.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: November 8, 2022
    Inventors: David Katz, William Ramsdell
  • Audio system keypad
    Patent number: D481706
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Russound/FMP, Inc.
    Inventors: Allen Boothroyd, William Ramsdell, Andrew Lewis, John Cronk, Joshua Cooper