Waldo J. Frierdich

Follow

Person

Highland, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Frequency sensing circuits and methods
- Patent number 4,769,611
- Issue date Sep 6, 1988
- Basler Electric Company
- Waldo J. Frierdich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Transfer apparatus, regulating apparatus and methods
- Patent number 4,701,690
- Issue date Oct 20, 1987
- Basler Electric Company
- Manuel Fernandez
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical control apparatus and methods
- Patent number 4,639,657
- Issue date Jan 27, 1987
- Basler Electric Company
- Waldo J. Frierdich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
System for maintaining excitation of an alternator during excessive...
- Patent number 4,410,848
- Issue date Oct 18, 1983
- Basler Electric Company
- Waldo J. Frierdich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
System for maintaining excitation of an alternating current generat...
- Patent number 4,264,856
- Issue date Apr 28, 1981
- Basler Electric Company
- Waldo J. Frierdich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER