Patents by Inventor Michael Kappler

Michael Kappler 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).

  • Compact fluorescent lamp
    Patent number: D304087
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: October 17, 1989
    Assignee: OSRAM GmbH
    Inventors: Horst Porembski, Michael Kappler
  • Compact fluorescent lamp
    Patent number: D304502
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: November 7, 1989
    Assignee: Osram GmbH
    Inventors: Albert Heidemann, Michael Kappler
  • Flat multi-tube compact fluorescent lamp
    Patent number: D340296
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: October 12, 1993
    Assignee: Osram GmbH
    Inventors: Bruno Bachetzky, Michael Kappler, Lothar Haendler, Horst Porembski