Patents by Inventor Eyvind Boyeson

Eyvind Boyeson 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).

  • Two cycle internal combustion engine
    Patent number: 4062331
    Abstract: A two-cycle internal combustion engine having reed-type intake valving, and specially configured and positioned intake and injection porting, with the porting constructed and arranged to improve various of the operating characteristics of the engine.
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: December 13, 1977
    Assignee: Performance Industries, Inc.
    Inventor: Eyvind Boyeson