Patents Assigned to The Invention Fund I, LLC
  • Free piston electromagnetic engine
    Patent number: 7777357
    Abstract: An engine includes a cylinder having two ends, a piston slidably disposed in the cylinder and a converter operable with the piston to convert mechanical energy of the piston from and to electrical energy.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: August 17, 2010
    Assignee: The Invention Fund I, LLC
    Inventors: Roderick A. Hyde, William H. Gates, III, Muriel Y. Ishikawa, Jordin T. Kare, Nathan P. Myhrvold, Clarence T. Tegreene, Thomas A. Weaver, Charles Whitmer, Lowell L. Wood, Jr., Victoria Y. H. Wood