Richard E. Thorp

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Frampton-Cotterell, GB

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Patents Grantslast 30 patents

Information Patent Grant
Choke device
- Patent number 6,116,355
- Issue date Sep 12, 2000
- Camco Drilling Group Limited of Hycalog
- Richard Edward Thorp
- 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
Information Patent Grant
Modulated bias units for steerable rotary drilling systems
- Patent number 5,553,678
- Issue date Sep 10, 1996
- Camco International Inc.
- John D. Barr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Modulated bias unit for rotary drilling
- Patent number 5,553,679
- Issue date Sep 10, 1996
- Camco Drilling Group Limited
- Richard E. Thorp
- E21 - EARTH DRILLING MINING
Information Patent Grant
Modulated bias unit for rotary drilling
- Patent number 5,520,255
- Issue date May 28, 1996
- Camco Drilling Group Limited
- John D. Barr
- E21 - EARTH DRILLING MINING