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Vincent Jue
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Rilling Hills East, CA, US
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last 30 patents
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Patent Grant
Cutting bit
Patent number
6,663,186
Issue date
Dec 16, 2003
Champion Equipment Corp.
Yuriy Kosobrodov
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of cutting and a cutting rotative bit
Patent number
5,799,741
Issue date
Sep 1, 1998
Champion Equipment Corp.
Yuriy Kosobrodov
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of cutting and cutting rotative bit
Patent number
5,520,444
Issue date
May 28, 1996
Champion Equipment Co.
Yury Kosobrodov
E21 - EARTH DRILLING MINING