Murdock; Andrew
Patent Applications and Registrations
Patent applications and USPTO patent grants for Murdock; Andrew.The latest application filed is for "cutting structure for earth boring drill bits".
- Murdock; Andrew - Stonehouse GB
- Murdock, Andrew - Bridgend GB
| Patent | Date |
|---|---|
| Cutting structure for earth boring drill bits Grant 6,484,822 - Watson , et al. November 26, 2 | 2002-11-26 |
| Cutting structure for earth boring drill bits App 20020100618 - Watson, Dean ; et al. | 2002-08-01 |
| Rotary drag-type drill bits and methods of designing such bits App 20010020551 - Taylor, Malcolm ; et al. | 2001-09-13 |
| Method of determining characteristics of a rotary drag-type drill bit Grant 6,151,960 - Taylor , et al. November 28, 2 | 2000-11-28 |
| Rotary drill bit having moveable formation-engaging members Grant 6,142,250 - Griffin , et al. November 7, 2 | 2000-11-07 |
| Rotary drill bits Grant 6,089,336 - Nexton , et al. July 18, 2 | 2000-07-18 |
| Rotary drill bits Grant 5,819,860 - Newton , et al. October 13, 1 | 1998-10-13 |
| In or relating to rotary drill bits Grant 5,732,783 - Truax , et al. March 31, 1 | 1998-03-31 |
| Rotary drill bit having a non-rotating gauge section Grant 5,697,461 - Newton , et al. December 16, 1 | 1997-12-16 |
| 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 |
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