Bruno C. Doerwald

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Duluth, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic overload relay power source
- Patent number 5,633,774
- Issue date May 27, 1997
- Roger L. Robertson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hybrid overload relay
- Patent number 5,570,262
- Issue date Oct 29, 1996
- Siemens Energy & Automation, Inc.
- Bruno C. Doerwald
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-function button for electronic overload relay
- Patent number 5,455,549
- Issue date Oct 3, 1995
- Siemens Energy & Automation, Inc.
- Woothi Strickland
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and device for open-loop control of single-phase or multipha...
- Patent number 5,410,240
- Issue date Apr 25, 1995
- Firma Carl Freudenberg
- Diethard Runggaldier
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER