Patents by Inventor Ulf Possner

Ulf Possner 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).

  • Aluminoborosilicate glass and method for the production of crystallite-free gradient index lenses
    Patent number: 7482296
    Abstract: The invention is directed to an aluminoborosilicate glass containing alkali metals for the production of optical components with refractive index gradients which are generated by ion exchange of monovalent metal ions in a base glass comprising at least silicon oxide, boron oxide, aluminum oxide and an alkali metal oxide, particularly for the production of gradient index lenses (GRIN lenses).
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 27, 2009
    Assignee: Grintech GmbH
    Inventors: Bernhard Messerschmidt, Christian Ruessel, Sandra Hornschuh, Torsten Possner, Ulf Possner
  • Aluminoborosilicate glass and method for the production of crystallite-free gradient index lenses
    Publication number: 20050137075
    Abstract: The invention is directed to an aluminoborosilicate glass containing alkali metals for the production of optical components with refractive index gradients which are generated by ion exchange of monovalent metal ions in a base glass comprising at least silicon oxide, boron oxide, aluminum oxide and an alkali metal oxide, particularly for the production of gradient index lenses (GRIN lenses).
    Type: Application
    Filed: December 17, 2004
    Publication date: June 23, 2005
    Inventors: Bernhard Messerschmidt, Christian Ruessel, Sandra Hornschuh, Torsten Possner, Ulf Possner