Camco Drilling Group Limited
Patent Applications and Registrations
Patent applications and USPTO patent grants for Camco Drilling Group Limited.The latest application filed is for "preform cutting elements for rotary drill bits".
- Camco Drilling Group Limited - Stonehouse GB
- Camco Drilling Group Ltd. - Stonehouse Gloucestershire GB2
- Camco Drilling Group Limited - GB2 GB2
- Camco Drilling Group Limited - Gloucestershire GB3
- Camco Drilling Group Ltd. - N/A
- Camco Drilling Group Limited - N/A
- Camco Drilling Group Ltd. - Gloucestershire GB2
- Camco Drilling Group Ltd. - Yiewsley GB5
- Camco Drilling Group Ltd. - Houston TX
| Patent | Date |
|---|---|
| Preform cutting elements for rotary drill bits Grant 6,065,554 - Taylor , et al. May 23, 2 | 2000-05-23 |
| Elements faced with superhard material Grant 5,888,619 - Griffin March 30, 1 | 1999-03-30 |
| Elements faced with superhard material Grant 5,862,873 - Matthias , et al. January 26, 1 | 1999-01-26 |
| Cutter assemblies for rotary drill bits Grant 5,720,357 - Fuller , et al. February 24, 1 | 1998-02-24 |
| Rotary drill bits Grant 5,671,818 - Newton , et al. September 30, 1 | 1997-09-30 |
| Rotary drill bits Grant 5,651,421 - Newton , et al. July 29, 1 | 1997-07-29 |
| Rotary drill bits Grant 5,649,604 - Fuller , et al. July 22, 1 | 1997-07-22 |
| Elements faced with superhard material Grant 5,617,928 - Matthias , et al. April 8, 1 | 1997-04-08 |
| Elements faced with superhard material Grant 5,611,649 - Matthias March 18, 1 | 1997-03-18 |
| Elements faced with super hard material Grant 5,605,199 - Newton February 25, 1 | 1997-02-25 |
| Rotatable pressure seal Grant 5,603,385 - Colebrook February 18, 1 | 1997-02-18 |
| Elements faced with superhard material Grant 5,598,750 - Griffin , et al. February 4, 1 | 1997-02-04 |
| Elements faced with superhard material Grant 5,590,728 - Matthias , et al. January 7, 1 | 1997-01-07 |
| Modulated bias unit for rotary drilling Grant 5,582,259 - Barr December 10, 1 | 1996-12-10 |
| Modulated bias unit for rotary drilling Grant 5,553,679 - Thorp September 10, 1 | 1996-09-10 |
| Rotary drilling tools Grant 5,531,281 - Murdock July 2, 1 | 1996-07-02 |
| Modulated bias unit for rotary drilling Grant 5,520,255 - Barr , et al. May 28, 1 | 1996-05-28 |
| Cutter assemblies for rotary drill bits Grant 5,487,436 - Griffin January 30, 1 | 1996-01-30 |
| Manufacture of rotary drill bits Grant 5,425,288 - Evans June 20, 1 | 1995-06-20 |
| Cutting elements for rotary drill bits Grant 5,421,425 - Griffin June 6, 1 | 1995-06-06 |
| Rotary drill bits Grant 5,417,296 - Murdock May 23, 1 | 1995-05-23 |
| Cutter assemblies and cutting elements for rotary drill bits Grant 5,348,109 - Griffin September 20, 1 | 1994-09-20 |
| Steerable rotary drilling systems Grant 5,265,682 - Russell , et al. November 30, 1 | 1993-11-30 |
| Rotary drill bits Grant 5,244,039 - Newton, Jr. , et al. September 14, 1 | 1993-09-14 |
| Rotary drill bits and methods of designing such drill bits Grant 5,222,566 - Taylor , et al. June 29, 1 | 1993-06-29 |
| Rotary drill bits Grant 5,186,268 - Clegg February 16, 1 | 1993-02-16 |
| Rotary drills bits Grant 5,165,494 - Barr November 24, 1 | 1992-11-24 |
| Rotary drill bits Grant 5,163,524 - Newton, Jr. , et al. November 17, 1 | 1992-11-17 |
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