Patents by Inventor Jan H. Hamkens

Jan H. Hamkens 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).

  • Method for producing an optical lens element, particularly a headlight lens for a motor vehicle headlight
    Patent number: 9421706
    Abstract: The invention relates to a method for producing an optical lens element (2), particularly for illumination purposes, particularly for producing a headlight lens (2) for a vehicle headlight, particularly for a motor vehicle headlight (1), wherein a blank (136) made of a transparent plastic is shaped in an injection molding tool (131, 132) by means of an injection molding method, and the blank (136) is subsequently pressed into the lens element (2) by means of a final shape mold (140, 141, 142), particularly in a polished manner.
    Type: Grant
    Filed: July 12, 2008
    Date of Patent: August 23, 2016
    Assignee: DOCTER OPTICS GMBH
    Inventor: Jan H. Hamkens
  • METHOD FOR PRODUCING AN OPTICAL LENS ELEMENT, PARTICULARLY A HEADLIGHT LENS FOR A MOTOR VEHICLE HEADLIGHT
    Publication number: 20100202154
    Abstract: The invention relates to a method for producing an optical lens element (2), particularly for illumination purposes, particularly for producing a headlight lens (2) for a vehicle headlight, particularly for a motor vehicle headlight (1), wherein a blank (136) made of a transparent plastic is shaped in an injection molding tool (131, 132) by means of an injection molding method, and the blank (136) is subsequently pressed into the lens element (2) by means of a final shape mold (140, 141, 142), particularly in a polished manner.
    Type: Application
    Filed: July 12, 2008
    Publication date: August 12, 2010
    Inventor: Jan H. Hamkens