John W. Robertson Jr.

Follow

Person

Willowick, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Current fault detection system and method for AC controller
- Patent number 4,875,000
- Issue date Oct 17, 1989
- The Babcock & Wilcox Company
- John J. Fry
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply for totem pole power switches
- Patent number 4,703,407
- Issue date Oct 27, 1987
- The Babcock & Wilcox Company
- John J. Fry
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Self-zeroing pressure transmitter with automatic pressure manifold
- Patent number 4,655,074
- Issue date Apr 7, 1987
- The Babcock & Wilcox Company
- John W. Robertson
- G01 - MEASURING TESTING
Information Patent Grant
Digital generation of 3-phase PWM waveforms for variable speed cont...
- Patent number 4,599,550
- Issue date Jul 8, 1986
- The Babcock & Wilcox Company
- John W. Robertson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High torque servo positioner using 3 phase variable frequency const...
- Patent number 4,456,865
- Issue date Jun 26, 1984
- The Babcock & Wilcox Company
- John W. Robertson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER