Patents by Inventor Earle E. Simpson

Earle E. Simpson 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).

  • Method of hydrothermally growing quartz
    Patent number: 4030966
    Abstract: This invention relates to a method of growing a single quartz crystal stone. In particular, a method for hydrothermally growing a quartz stone from a quartz seed is disclosed. A substantially stress-free quartz stone is grown in an autoclave by clamping a quartz crystal seed plate in a clip so as to permit substantially unobstructed growth of the stone in the plane of the seed plate, and growing at least a portion of the stone through at least one aperture formed in the clip.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: June 21, 1977
    Assignee: Western Electric Company, Inc.
    Inventors: Carl F. Hornig, Kenneth M. Kroupa, Earle E. Simpson