John H. Douglas

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Clearwater, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-function showerhead filter system
- Patent number 6,796,518
- Issue date Sep 28, 2004
- John H. Douglas
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Filter system for removing contaminants from water and method thereof
- Patent number 6,599,428
- Issue date Jul 29, 2003
- Paragon Water Systems, Inc.
- John H. Douglas
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Showerhead system with turbulence inducing and water purification m...
- Patent number 5,975,434
- Issue date Nov 2, 1999
- John H Douglas
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Multi-function showerhead filter system with swivel inlet connection
- Publication number 20050035228
- Publication date Feb 17, 2005
- John H. Douglas
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Multi-funtion showerhead filter system
- Publication number 20040056123
- Publication date Mar 25, 2004
- John H. Douglas
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Water filtration device employing far infrared media
- Publication number 20020063089
- Publication date May 30, 2002
- John H. Douglas
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE