Patents by Inventor Davis Hartman

Davis Hartman 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).

  • Modular optical waveguide and method for making
    Patent number: 5325451
    Abstract: A method for making a modular optical waveguide (100) including a plurality of optical modules (102, 103, 104, 105) with each optical module having at least a core region (101) that is surrounded by a cladding region (111, 112). A first groove 114 and a second groove 116 are disposed into cladding region (111, 112), thereby separating the optical modules (102, 103, 104, 105).
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: June 28, 1994
    Assignee: Motorola, Inc.
    Inventors: Davis Hartman, Michael S. Lebby, Thomas H. Blair, Dennis B. Miller