Camco Drilling Group Ltd. of Hycalog

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Stonehouse Gloucestershire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Cutting elements for rotary drill bits
- Patent number 5,740,874
- Issue date Apr 21, 1998
- Camco Drilling Group Ltd. of Hycalog
- Terry R. Matthias
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bit having a non-rotating gauge section
- Patent number 5,697,461
- Issue date Dec 16, 1997
- Camco Drilling Group Ltd. of Hycalog
- Alex Newton
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method of controlling rotation of a downhole instrument...
- Patent number 5,695,015
- Issue date Dec 9, 1997
- Camco Drilling Group Ltd. of Hycalog
- John D. Barr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of operating a steerable rotary drilling system
- Patent number 5,685,379
- Issue date Nov 11, 1997
- Camco Drilling Group Ltd. of Hycalog
- John D. Barr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Modulated bias unit for rotary drilling
- Patent number 5,673,763
- Issue date Oct 7, 1997
- Camco Drilling Group Ltd. of Hycalog
- Richard Edward Thorp
- E21 - EARTH DRILLING MINING