Patents by Inventor Michael J. Dorich

Michael J. Dorich 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 gas laser having extended life
    Patent number: 4649545
    Abstract: A compact, extended life, gas laser comprises a capillary tube with a transition portion having a reduced wall thickness. The laser includes a cathode which is cylindrical in a rearward cathode region and hemispherical in a forward cathode region. The configuration of the capillary tube and the cathode cooperate to inhibit short circuiting of the bore to cathode discharge path and thereby extend the life of the laser.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: March 10, 1987
    Assignee: Melles Griot, San Marcos Company
    Inventors: Wei-long W. Lee, Michael J. Dorich, Jeff W. Eerkens