James E. Congdon

Person

Sudbury, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Three terminal noninverting transistor switch
- Patent number 6,958,623
- Issue date Oct 25, 2005
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic timer switch
- Patent number 6,639,777
- Issue date Oct 28, 2003
- James S. Congdon
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Three-terminal inverting hysteretic transistor switch
- Patent number 6,259,292
- Issue date Jul 10, 2001
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Three terminal noninverting transistor switch
- Patent number 5,134,323
- Issue date Jul 28, 1992
- James E. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High-switching-speed d.c. amplifier with input-offset current compe...
- Patent number 4,594,558
- Issue date Jun 10, 1986
- GenRad, Inc.
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Enhanced-accuracy semiconductor power amplifier
- Patent number 4,523,154
- Issue date Jun 11, 1985
- GenRad, Inc.
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Lateral PNP power transistor
- Patent number 4,417,265
- Issue date Nov 22, 1983
- National Semiconductor Corporation
- Judd R. Murkland
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for driving air core meter movements
- Patent number 4,356,445
- Issue date Oct 26, 1982
- Cherry Semiconductor Corporation
- James S. Congdon
- G01 - MEASURING TESTING
Information Patent Grant
Two stage thermal shutdown
- Patent number 4,345,218
- Issue date Aug 17, 1982
- National Semiconductor Corporation
- James S. Congdon
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Thermal stress reduction in IC power transistors
- Patent number 4,276,516
- Issue date Jun 30, 1981
- National Semiconductor Corporation
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier output stage distortion reduction
- Patent number 4,263,563
- Issue date Apr 21, 1981
- National Semiconductor Corporation
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Three terminal noninverting transistor switch background of the inv...
- Publication number 20040100303
- Publication date May 27, 2004
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY

James E. Congdon

Person

Patents Grantslast 30 patents

Three terminal noninverting transistor switch

Electronic timer switch

Three-terminal inverting hysteretic transistor switch

Three terminal noninverting transistor switch

High-switching-speed d.c. amplifier with input-offset current compe...

Enhanced-accuracy semiconductor power amplifier

Lateral PNP power transistor

Method and apparatus for driving air core meter movements

Two stage thermal shutdown

Thermal stress reduction in IC power transistors

Amplifier output stage distortion reduction

Patents Applicationslast 30 patents

Three terminal noninverting transistor switch background of the inv...