William J. Nicholl

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric motor actuated stop and self-closing check valve
- Patent number 8,465,000
- Issue date Jun 18, 2013
- GA Industries, LLC
- Donald L. Bartell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Electric motor actuated stop and self-closing check valve
- Patent number 7,249,748
- Issue date Jul 31, 2007
- GA Industries, Inc.
- Donald L. Bartell, Jr.
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Electric motor actuated stop and self-closing check valve
- Patent number 6,929,238
- Issue date Aug 16, 2005
- GA Industries Inc.
- Donald L. Bartell, Jr.
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Electric Motor Actuated Stop and Self-Closing Check Valve
- Publication number 20130312837
- Publication date Nov 28, 2013
- Donald L. Bartell
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Electric Motor Actuated Stop and Self-Closing Check Valve
- Publication number 20110259433
- Publication date Oct 27, 2011
- GA INDUSTRIES, INC.
- Donald L. Bartell, JR.
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Electric motor actuated stop and self-closing check valve
- Publication number 20080061257
- Publication date Mar 13, 2008
- GA Industries Inc.
- Donald L. Bartell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Electric motor actuated stop and self-closing check valve
- Publication number 20050269535
- Publication date Dec 8, 2005
- GA Industries Inc.
- Donald L. Bartell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Electric motor actuated stop and self-closing check valve
- Publication number 20050062000
- Publication date Mar 24, 2005
- Donald L. Bartell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...