WM

William F. MacPherson

BL Bell Telephone Laboratories: 5 patents #75 of 1,445Top 6%
AT AT&T: 1 patents #10,626 of 18,772Top 60%
📍 Wheaton, IL: #147 of 884 inventorsTop 20%
🗺 Illinois: #13,022 of 84,256 inventorsTop 20%
Overall (All Time): #769,407 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
4656366 Control circuitry using two branch circuits for high voltage solid-state switches James A. Davis, Harry Edward Mussman, Peter W. Shackle 1987-04-07
4499532 Floating battery feed circuit Robert C. Hudson, Charles H. Sharpless 1985-02-12
4447744 Control circuitry for high voltage solid-state switches Adrian R. Hartman, James E. Kohl, Terence J. Riley 1984-05-08
4408248 Protection circuit Raymond M. Bulley, Robert F. Youhas 1983-10-04
4345163 Control circuitry for high voltage solid-state switches James A. Davis, Harry Edward Mussman, Peter W. Shackle 1982-08-17
4309715 Integral turn-on high voltage switch Robert S. Scott, Peter W. Shackle 1982-01-05
4250409 Control circuitry using a pull-down transistor for high voltage field terminated diode solid-state switches James A. Davis, Peter W. Shackle 1981-02-10