Patents by Inventor Jan E. Osterlund

Jan E. Osterlund 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).

  • Patent number: 5321441
    Abstract: The present invention provides a sunglass lens having a central region which is provided with an ultra-violet screening agent to protect the eye while the surrounding regions of the lens have little or no screening agent so as to permit tanning of the skin around the eye. In a preferred embodiment, the lens is additionally colored with tint, the darkness of which may vary over the surface area of the lens. In addition, the variation of tint over the surface of the lens is different from the variation of the ultra-violet screening agent. For example, the ultra-violet screening agent is most highly concentrated in the central portion of the lens whereas the colored tint is most highly concentrated around the periphery of the lens.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: June 14, 1994
    Assignee: Tanoptic AG
    Inventor: Jan E. Osterlund