Patents by Inventor L. Buck Postlewait

L. Buck Postlewait 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 manufacture of circuit boards
    Patent number: 4998207
    Abstract: A method for manufacturing circuit boards which control digital displays includes a TV camera which images the digital display. The output of the TV camera is fed into a computer which controls a laser trimmer. The laser trimmer trims the resistors on the controlling circuit board until the desired value and characteristics are obtained on the digital display.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: March 5, 1991
    Assignee: Cooper Industries, Inc.
    Inventor: L. Buck Postlewait