Patents by Inventor Stanley L. Bowlin

Stanley L. Bowlin 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).

  • Layered film resistor with high resistance and high stability
    Patent number: 4746896
    Abstract: A high stability, high resistance metal film resistor having layered metallic films deposited and annealed such that one layer has a positive TCR and a negative TCR Slope, while a second layer has a negative TCR and a positive TCR Slope, thereby yielding a resistive film having TCR and a TCR Slope approaching zero.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: May 24, 1988
    Assignee: North American Philips Corp.
    Inventors: James G. Mcquaid, Stanley L. Bowlin
  • Method of trimming precision resistors
    Patent number: 4566936
    Abstract: A method for trimming precision resistors which includes forming a helical groove in a conductive film coating on a cylindrical core. Final trimming includes forming discrete circular depressions in the film coating by using a pulsed laser. This method enables the manufacture of precision resistors having a tolerance of 0.25% or better.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: January 28, 1986
    Assignee: North American Philips Corporation
    Inventor: Stanley L. Bowlin