Alec Ewen

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Nazeing, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method of making fitting joint for double containment pipe
- Patent number 6,649,015
- Issue date Nov 18, 2003
- Enfield Industrial Corporation
- John Allen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Double containment pipe fitting
- Patent number 5,624,140
- Issue date Apr 29, 1997
- Enfield Industrial Corporation
- John Allen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making fitting joint for double containment pipe
- Patent number 5,529,656
- Issue date Jun 25, 1996
- Enfield Industrial Corporation
- Alec Ewen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Double containment pipe and fitting joint
- Patent number 5,433,484
- Issue date Jul 18, 1995
- Enfield Industrial Corporation
- Alec Ewen
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL