Donald R. Davidson

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Chatham, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Swimming pool cleaning apparatus and parts therefor
- Patent number 7,318,448
- Issue date Jan 15, 2008
- H-Tech, Inc.
- Eric C. Fleischer
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Plastic niche and grounding assembly therefor
- Patent number 5,607,224
- Issue date Mar 4, 1997
- H-Tech, Inc.
- Samuel Tobias
- F21 - LIGHTING
Information Patent Grant
Plastic niche and grounding assembly therefor
- Patent number 5,432,688
- Issue date Jul 11, 1995
- H-Tech, Inc.
- Samuel Tobias
- F21 - LIGHTING
Information Patent Grant
Rotary jet hydrotherapy device and method
- Patent number 5,271,561
- Issue date Dec 21, 1993
- Hayward Industries, Inc.
- Samuel Tobias
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Debris bag for a swimming pool cleaning apparatus
- Publication number 20080202997
- Publication date Aug 28, 2008
- Donald R. Davidson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Debris bag for a swimming pool cleaning apparatus
- Publication number 20050279682
- Publication date Dec 22, 2005
- Donald R. Davidson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...