Leslie J. Wall

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Bracknell, GB

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Patents Grantslast 30 patents

Information Patent Grant
Crash barrier beam
- Patent number 8,061,926
- Issue date Nov 22, 2011
- Hill & Smith Limited
- Mark Riddell
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Safety barrier
- Patent number D574511
- Issue date Aug 5, 2008
- Hill & Smith Holdings PLC
- Mark N. Riddell
- D25 - Building units and construction elements
Information Patent Grant
Safety barrier
- Patent number D574510
- Issue date Aug 5, 2008
- Hill & Smith Holdings PLC
- Mark N. Riddell
- D25 - Building units and construction elements

Patents Applicationslast 30 patents

Information Patent Application
CRASH BARRIER BEAM
- Publication number 20100061800
- Publication date Mar 11, 2010
- Mark Riddell
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES