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Brian Rickards
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Fremont, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Pilot bit
Patent number
5,476,149
Issue date
Dec 19, 1995
Pengo Corporation
Brian Rickards
E21 - EARTH DRILLING MINING
Information
Patent Grant
Excavating tooth and shank plate assembly
Patent number
5,433,033
Issue date
Jul 18, 1995
Pengo Corporation
Brian Rickards
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Auger head assembly and method of drilling hard earth formations
Patent number
5,427,191
Issue date
Jun 27, 1995
Pengo Corporation
Brian Rickards
E21 - EARTH DRILLING MINING
Information
Patent Grant
Reversible tooth with adjustable attack angle
Patent number
5,426,875
Issue date
Jun 27, 1995
Pengo Corporation
Brian Rickards
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Auger head assembly and method of drilling hard earth formations
Patent number
5,366,031
Issue date
Nov 22, 1994
Pengo Corporation
Brian Rickards
E21 - EARTH DRILLING MINING