Patents by Inventor Karl J. L. Geisler

Karl J. L. Geisler 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).

  • LIGHTGUIDE AS LUMINAIRE
    Publication number: 20130155719
    Abstract: A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light. The shape can also be used to create a particular pattern of the extracted light.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Inventors: Robert L. Brott, Michael A. Meis, Karl J.L. Geisler, Raymond P. Johnston, Charles N. DeVore, Kayla A. Hagens, Jon A. Kirschhoffer
  • Light bulb
    Patent number: D655830
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: March 13, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Martin E. Broen, Robert L. Brott, Jorge C. Ceballos, Charles N. Devore, Andrew R. Fox, Karl J. L. Geisler, Kayla A. Hagens, Sean C. McGreevy, Hamid R. Mortazavi
  • Light bulb
    Patent number: D657076
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 3, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Martin E. Broen, Robert L. Brott, Jorge C. Ceballos, Charles N. Devore, Andrew R. Fox, Karl J. L. Geisler, Kayla A. Hagens, Sean C. McGreevy, Hamid R. Mortazavi
  • Lightguide lighting assembly
    Patent number: D693045
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: November 5, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Jon A. Kirschhoffer, Robert L. Brott, Kayla A. Hagens, Karl J. L. Geisler, Raymond P. Johnston, Steven G. Lucht, Phillip D. Ziolkowski, Thomas A. Kaczkowski