John Anthony Smith

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Sheffield, GB

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Patents Grantslast 30 patents

Information Patent Grant
Drainage device
- Patent number 7,891,907
- Issue date Feb 22, 2011
- Enverflow Ltd.
- John Anthony Smith
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
WATER FLOW APPARATUS
- Publication number 20130333304
- Publication date Dec 19, 2013
- ENVERFLOW LIMITED
- John Anthony Smith
- E04 - BUILDING
Information Patent Application
WATER FLOW APPARATUS
- Publication number 20110314748
- Publication date Dec 29, 2011
- ENVERFLOW LIMITED
- John Anthony Smith
- E04 - BUILDING
Information Patent Application
Drainage device
- Publication number 20090202301
- Publication date Aug 13, 2009
- John Anthony Smith
- E03 - WATER SUPPLY SEWERAGE