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Patents Grants
last 30 patents
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Patent Grant
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Patent number
6,006,829
Issue date
Dec 28, 1999
Oiltools International B.V.
Michael B. Whitlock
E21 - EARTH DRILLING MINING
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Patent Grant
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Patent number
5,992,518
Issue date
Nov 30, 1999
Oiltools International B.V.
Michael B. Whitlock
E21 - EARTH DRILLING MINING
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Patent Grant
Tool for cleaning or conditioning tubular structures such as well c...
Patent number
5,819,353
Issue date
Oct 13, 1998
Oiltools International B.V.
Richard Alvin Armell
E21 - EARTH DRILLING MINING
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Trademark
last 30 trademarks
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Trademark
75576625 - OILTOOLS
Serial number
75576625
Registration number
2520579
Filing date
Oct 27, 1998
Oiltools International Limited
37 - Building construction
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Trademark
75574986 - OILTOOLS
Serial number
75574986
Registration number
2510866
Filing date
Oct 22, 1998
Oiltools International Limited
37 - Building construction