Roger Tailby

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic tool and hydraulic pressure device
- Patent number 5,390,739
- Issue date Feb 21, 1995
- Den Norske Stats Oljeselskap A.S.
- Roger Tailby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Washing tool
- Patent number 5,337,819
- Issue date Aug 16, 1994
- Den Norske Stats Oljeselskap A.S.
- Roger Tailby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pumpdown toolstring operations in horizontal or high-deviation oil...
- Patent number 5,163,515
- Issue date Nov 17, 1992
- Den Norske Stats Oljeselskap A.S.
- Roger Tailby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Injection valve for injecting chemicals and similar liquid substanc...
- Patent number 5,141,056
- Issue date Aug 25, 1992
- Den Norske Stats Oljeselskap A.S.
- Roger Tailby
- E21 - EARTH DRILLING MINING
Information Patent Grant
Device for collecting particulate matter and debris in horizontal o...
- Patent number 5,135,050
- Issue date Aug 4, 1992
- Den Norske Stats Oljeselskap A.S.
- Roger Tailby
- E21 - EARTH DRILLING MINING