Patents by Inventor Peter O. Marker

Peter O. Marker 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).

  • Safety helmet
    Patent number: 4006496
    Abstract: A lightweight safety helmet for use by the operator of a motorcycle, or the like. The helmet meets all present day standards and specifications as well as the more strigent standards and specifications proposed by the construction of a single shell helmet having a dual shock liner system.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: February 8, 1977
    Assignee: Land Tool Company
    Inventor: Peter O. Marker
  • Motor vehicle steering wheel
    Patent number: D243078
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: January 18, 1977
    Inventors: Peter O. Marker, Joseph F. King