Patents by Inventor Berthold Teloeken

Berthold Teloeken 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).

  • Transparent molding composition for optical applications
    Patent number: 7133209
    Abstract: A molding composition which is composed of at least 60% by weight of transparent polyamide, where the molding composition comprises an effective amount of one or more optical brighteners, and where the amount of the optical brightener has been judged in such a way that a) the b value, which is a measure of yellowness, is at most 7, and moreover b) between 370 and 430 nm, at least in a lower part of the range, the transmittance is smaller than 1%, measured at a layer thickness of 4 mm, can be processed to give products which are substantially impermeable to UV light.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 7, 2006
    Assignee: Degussa AG
    Inventors: Roland Wursche, Dagmar Kaufhold, Berthold Teloeken
  • Transparent molding composition for optical applications
    Publication number: 20040166342
    Abstract: A molding composition which is composed of at least 60% by weight of transparent polyamide, where the molding composition comprises an effective amount of one or more optical brighteners, and where the amount of the optical brightener has been judged in such a way that
    Type: Application
    Filed: February 24, 2004
    Publication date: August 26, 2004
    Applicant: DEGUSSA AG
    Inventors: Roland Wursche, Dagmar Kaufhold, Berthold Teloeken