Gary D. Cryer

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Chandler, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Filtration system including a back washable pre-filtration apparatus
- Patent number 6,238,556
- Issue date May 29, 2001
- Fluid Art Technologies, LLC
- William D. Hawk
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Filtering apparatus having positively buoyant and negatively buoyan...
- Patent number 5,932,092
- Issue date Aug 3, 1999
- William D. Hawk
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Filtering apparatus having positively buoyant and negatively buoyan...
- Patent number 5,723,043
- Issue date Mar 3, 1998
- William D. Hawk
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Filtration system including a back washable pre-filtration apparatus
- Publication number 20010022286
- Publication date Sep 20, 2001
- William D. Hawk
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL