Patents by Inventor Lawrence M. Hagen

Lawrence M. Hagen 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).

  • Isotropic boron nitride and method of making same
    Patent number: 4096297
    Abstract: The invention disclosed herein relates to a body of substantially pure isotropic boron nitride in which individual anisotropic crystals of boron nitride are substantially randomly oriented and pyrolytically bonded to form a body having substantially improved electrical and mechanical properties compared with anisotropic boron nitride bodies in which individual boron nitride crystals are hot press bonded.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: June 20, 1978
    Assignee: Raytheon Company
    Inventors: James Pappis, Lawrence M. Hagen, Pei-Ching Li