Charles D. Bettis

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Cedar Rapids, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Quick responding instantaneous trip system
- Patent number 6,654,217
- Issue date Nov 25, 2003
- Square D Company
- Henry J. Zylstra
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for testing an arcing fault circuit interrupter
- Patent number 6,218,844
- Issue date Apr 17, 2001
- Square D Company
- Kon B. Wong
- G01 - MEASURING TESTING
Information Patent Grant
Arcing fault detection system using fluctuations in current peaks a...
- Patent number 5,839,092
- Issue date Nov 17, 1998
- Square D Company
- Robert J. Erger
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Quick responding instantaneous trip system
- Publication number 20020085330
- Publication date Jul 4, 2002
- Henry J. Zylstra
- H01 - BASIC ELECTRIC ELEMENTS