John Douglas Pearce

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London, CA

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Patents Grantslast 30 patents

Information Patent Grant
Filtration methods, apparatus, and systems using a ceramic seal gasket
- Patent number 11,041,565
- Issue date Jun 22, 2021
- 1934612 Ontario Inc.
- Brian E. Butters
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus, systems, and methods for fluid filtration
- Patent number 10,071,927
- Issue date Sep 11, 2018
- 1934612 Ontario Inc.
- Brian E. Butters
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Advanced contaminate treatment system
- Patent number 7,326,278
- Issue date Feb 5, 2008
- Purifics Environmental Technologies, Inc.
- Brian E. Butters
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
FILTRATION METHODS, APPARATUS, AND SYSTEMS USING A CERAMIC SEAL GASKET
- Publication number 20150136689
- Publication date May 21, 2015
- Brian E. Butters
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
APPARATUS, SYSTEMS, AND METHODS FOR FLUID FILTRATION
- Publication number 20130341270
- Publication date Dec 26, 2013
- Brian E. Butters
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
HYBRID FIELD DEVICE CABLING WITH INDUSTRIAL NETWORK AND OPERATING P...
- Publication number 20070198100
- Publication date Aug 23, 2007
- Purifics Environmental Technologies, Inc.
- Brian E. Butters
- G05 - CONTROLLING REGULATING
Information Patent Application
Advanced contaminate treatment system
- Publication number 20050288512
- Publication date Dec 29, 2005
- Purifics Environmental Technologies, Inc.
- Brian E. Butters
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL