Eric Johnstone Cook

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Patents Grantslast 30 patents

Information Patent Grant
Compaction roller
- Patent number 6,843,615
- Issue date Jan 18, 2005
- Compaction Technology (Soil) Limited
- Eric Johnstone Cook
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Soil levelling device
- Patent number 6,382,873
- Issue date May 7, 2002
- Compaction Technology (Soil) Limited
- David Alfred Mulders
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Soil compaction apparatus
- Patent number 6,065,904
- Issue date May 23, 2000
- Compaction Technology (Soil) Limited
- Eric Johnstone Cook
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method and apparatus for monitoring soil compaction
- Patent number 6,004,076
- Issue date Dec 21, 1999
- Compaction Technology (Soil) Limited
- Eric Johnstone Cook
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
DROP MASS SOIL COMPACTION APPARATUS
- Publication number 20090208296
- Publication date Aug 20, 2009
- Compaction Technology (Proprietary) Ltd.
- Eric Johnstone Cook
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Drop mass compaction of soil
- Publication number 20050129467
- Publication date Jun 16, 2005
- Compaction Technology (Soil) Ltd.
- Eric Johnstone Cook
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING