John T. Grzan

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Brentwood, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Linear pressure switch apparatus and method
- Patent number 8,026,454
- Issue date Sep 27, 2011
- John T. Grzan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Linear pressure switch apparatus and method
- Patent number 7,659,485
- Issue date Feb 9, 2010
- John T. Grzan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Water resistant switch mat having activation across its entire surface
- Patent number 7,176,397
- Issue date Feb 13, 2007
- Tapeswitch Corporation
- John Grzan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Machine guarding system having a sensing mat with status indicator...
- Patent number 7,119,704
- Issue date Oct 10, 2006
- Tapeswitch Corporation
- John Grzan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
LINEAR PRESSURE SWITCH APPARATUS AND METHOD
- Publication number 20100096245
- Publication date Apr 22, 2010
- John T. Grzan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Linear pressure switch apparatus and method
- Publication number 20090120777
- Publication date May 14, 2009
- John T. Grzan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Water resistant switch mat having activation across its entire surface
- Publication number 20060175184
- Publication date Aug 10, 2006
- Tapeswitch Corporation
- John Grzan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Machine guarding system having a sensing mat with status indicator...
- Publication number 20060082465
- Publication date Apr 20, 2006
- Tapeswitch Corporation
- John Grzan
- H01 - BASIC ELECTRIC ELEMENTS