Patents by Inventor Theo H. Grepper

Theo H. Grepper 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).

  • Adjustable helmet
    Patent number: 6647556
    Abstract: An adjustable helmet, particularly a cyclist's helmet having at least one longitudinal spar which is intended to be positioned above the parting, two end pieces one of which is intended to be positioned above the forehead and the other one above the back of the head. Guides between the end pieces and the longitudinal spar which are aligned approximately in parallel with the parting. Two lateral elements which are intended to be positioned above the temples, guides between the end pieces and the lateral elements which are aligned obliquely to the parting, and an adjusting and/or locating device for the relative position of the longitudinal spar, end pieces, and lateral elements.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: November 18, 2003
    Assignee: Plim Cooperation Ltd.
    Inventors: Theo H. Grepper, Martin Knoepfli
  • Adjustable helmet
    Publication number: 20020007508
    Abstract: An adjustable helmet, particularly a cyclist's helmet having at least one longitudinal spar which is intended to be positioned above the parting, two end pieces one of which is intended to be positioned above the forehead and the other one above the back of the head. Guides between the end pieces and the longitudinal spar which are aligned approximately in parallel with the parting. Two lateral elements which are intended to be positioned above the temples, guides between the end pieces and the lateral elements which are aligned obliquely to the parting, and an adjusting and/or locating device for the relative position of the longitudinal spar, end pieces, and lateral elements.
    Type: Application
    Filed: April 25, 2001
    Publication date: January 24, 2002
    Inventors: Theo H. Grepper, Martin Knoepfli
  • Helmet ring
    Patent number: D501956
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: February 15, 2005
    Assignee: PLIM Corporation LTD
    Inventors: Theo H. Grepper, Martin Knoepfli