Russell J. Mayhew

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Single stack manual marine winch
- Patent number 7,543,800
- Issue date Jun 9, 2009
- W. W. Patterson Company
- David B Grapes
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Marine winch with winch-line engaging roller
- Patent number 7,478,795
- Issue date Jan 20, 2009
- W. W. Patterson Company
- David B Grapes
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Winch with safe load release system
- Patent number 6,572,083
- Issue date Jun 3, 2003
- W. W. Patterson Company
- Richard A. Topping
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Marine Winch with Winch-Line Engaging Roller
- Publication number 20080061277
- Publication date Mar 13, 2008
- W. W. Patterson Company
- David B. Grapes
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Single Stack Manual Marine Winch
- Publication number 20080048162
- Publication date Feb 28, 2008
- W. W. Patterson Company
- David B. Grapes
- B66 - HOISTING LIFTING HAULING