For the Inventor, By the Inventor

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Stonehouse, United Kingdom

Camco Drilling Group Limited

USPTO Granted Patents = 34

Forward Citations = 2,080

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29 inventors (with patents filed for the assignee):

Nigel Dennis Griffin (8 out of 39 patents)

Andrew D Murdock (6 out of 16 patents)

John M Fuller (6 out of 22 patents)

4. Malcolm Roy Taylor (5 out of 26 patents)

5. Terry R Matthias (5 out of 20 patents)

6. John D Barr (4 out of 40 patents)

7. Alex Newton (4 out of 8 patents)

8. John M Clegg (4 out of 11 patents)

9. Douglas Bruce Caraway (2 out of 16 patents)

10. Richard Edward Thorp (2 out of 4 patents)

11. Thomas A Newton, Jr (2 out of 2 patents)

12. Michael King Russell (1 out of 29 patents)

13. Mark A Colebrook (1 out of 3 patents)

14. Tom Scott Roberts (1 out of 9 patents)

15. Andrew Keohane (1 out of 1 patent)

34 patents: Sort by Forward Citations

1. 6065554 - Preform cutting elements for rotary drill bits (2000-05-23),

2. 5992549 - Cutting structures for rotary drill bits (1999-11-30),

3. 5959380 - Prevention of particle accumulation between rotatable components of an (1999-09-28),

4. 5888619 - Elements faced with superhard material (1999-03-30),

5. 5875849 - Apparatus and method for recompleting wells with coiled tubing (1999-03-02),

6. 5862873 - Elements faced with superhard material (1999-01-26),

7. 5829539 - Rotary drill bit with hardfaced fluid passages and method of (1998-11-03),

8. 5769175 - Cutter assemblies for rotary drill bits (1998-06-23),

9. 5720357 - Cutter assemblies for rotary drill bits (1998-02-24),

10. 5699868 - Rotary drill bits having nozzles to enhance recirculation (1997-12-23),

11. 5671818 - Rotary drill bits (1997-09-30),

12. 5651421 - Rotary drill bits (1997-07-29),

13. 5649604 - Rotary drill bits (1997-07-22),

14. 5617928 - Elements faced with superhard material (1997-04-08),

15. 5611649 - Elements faced with superhard material (1997-03-18),

Camco Drilling Group Limited is a leading provider of drilling services for oil and gas exploration. With a strong track record in delivering high-quality drilling solutions, Camco Drilling Group has established itself as a trusted partner in the industry. Our team of experienced professionals, state-of-the-art equipment, and commitment to safety ensure efficient and reliable drilling operations. Visit our website to learn more about our services and how we can meet your drilling needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

34 Patents

#2 in Stonehouse

#510 in United Kingdom

#19,056 in the World

Stonehouse, United Kingdom

Camco Drilling Group Limited

Forward Citations = 2,080

29 inventors:

Nigel Dennis Griffin (8 out of 39 patents)

Andrew D Murdock (6 out of 16 patents)

John M Fuller (6 out of 22 patents)

4. Malcolm Roy Taylor (5 out of 26 patents)

5. Terry R Matthias (5 out of 20 patents)

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