Patents by Inventor Lawrence B. Ehlert

Lawrence B. Ehlert 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).

  • Extending RLG lifetime by maintaining low level oxygen impurity background
    Patent number: 6259528
    Abstract: Plasma is placed in ring laser gyro blocks to create laser beams for the operation of the ring laser gyro. The plasma is doped with a small portion of material that allows the ring laser gyro to operate for a long period of time.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: July 10, 2001
    Assignee: Honeywell Inc.
    Inventors: Steven C. Albers, Timothy J. Callaghan, Lawrence B. Ehlert, Joseph E. Killpatrick