Andrew C. Shum

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Des Plaines, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Circuit interrupter and operating mechanism therefor
- Patent number 6,696,658
- Issue date Feb 24, 2004
- S & C Electric Co.
- Henry W. Kowalyshen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Operating arrangement for mechanism
- Patent number 6,674,027
- Issue date Jan 6, 2004
- S & C Electric Co.
- Henry W. Kowalyshen
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
OPERATING ARRANGEMENT FOR MECHANISM
- Publication number 20030213681
- Publication date Nov 20, 2003
- Henry W. Kowalyshen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Circuit interrupter and operating mechanism therefor
- Publication number 20030034331
- Publication date Feb 20, 2003
- Henry W. Kowalyshen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Operating arrangement for mechanism
- Publication number 20030029702
- Publication date Feb 13, 2003
- Henry W. Kowalyshen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Pressure relief arrangement for a housing
- Publication number 20020093146
- Publication date Jul 18, 2002
- John C. Opfer
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...