Coupler Developments Limited
Patent Applications and Registrations
Patent applications and USPTO patent grants for Coupler Developments Limited.The latest application filed is for "drilling rig".
- Coupler Developments Limited - Douglas IM
- Coupler Developments Limited - IM IM
- Coupler Developments Limited - GB GB
| Patent | Date |
|---|---|
| Drilling rig Grant 7,584,796 - Ayling September 8, 2 | 2009-09-08 |
| Radially moving slips Grant 7,395,855 - Ayling July 8, 2 | 2008-07-08 |
| Continuous circulation drilling method Grant 7,322,418 - Ayling January 29, 2 | 2008-01-29 |
| Method and apparatus with slips assembly for coupling tubulars without interruption of circulation Grant 7,252,161 - Ayling August 7, 2 | 2007-08-07 |
| Drilling method Grant 7,252,151 - Ayling August 7, 2 | 2007-08-07 |
| Drilling method Grant 7,188,683 - Ayling March 13, 2 | 2007-03-13 |
| Continuous circulation drilling method Grant 6,739,397 - Ayling May 25, 2 | 2004-05-25 |
| Drilling methods and apparatus Grant 6,688,394 - Ayling February 10, 2 | 2004-02-10 |
| Drilling method Grant 6,591,916 - Ayling July 15, 2 | 2003-07-15 |
| Continuous circulation drilling method Grant 6,315,051 - Ayling November 13, 2 | 2001-11-13 |
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