Alexander Charles Edward Johnson

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Tockwith, GB

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Patents Grantslast 30 patents

Information Patent Grant
Sealing of pipe liners
- Patent number 12,251,887
- Issue date Mar 18, 2025
- W.E.Rawson Limited
- David John Blades
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Impregnation of liners
- Patent number 5,876,645
- Issue date Mar 2, 1999
- Applied Felts Limited
- Alexander Charles Edward Johnson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Flexible tubular structures
- Patent number 5,672,398
- Issue date Sep 30, 1997
- W. E. Rawson Limited
- Alexander Charles Edward Johnson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
IMPROVEMENTS RELATING TO THE SEALING OF PIPE LINERS
- Publication number 20220186871
- Publication date Jun 16, 2022
- W.E.Rawson Limited
- David John Blades
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
PIPE LINER
- Publication number 20220105700
- Publication date Apr 7, 2022
- W.E.Rawson Limited
- David Blades
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL