Carmichael; Mark
Patent Applications and Registrations
Patent applications and USPTO patent grants for Carmichael; Mark.The latest application filed is for "circulating sub".
- Carmichael; Mark - St Mary GB
- Carmichael; Mark - Jersey GB
- Carmichael; Mark - Aberdeen GB
- Carmichael; Mark - Aberdeenshire GB
- Carmichael, Mark - Jeraey GB
- Carmichael; Mark - Aboye GB
- Carmichael; Mark - Aboyne GB
| Patent | Date |
|---|---|
| Circulating sub and method Grant 7,322,419 - Carmichael January 29, 2 | 2008-01-29 |
| Circulating sub App 20050217864 - Carmichael, Mark | 2005-10-06 |
| Magnetic well cleaning apparatus Grant 6,655,462 - Carmichael , et al. December 2, 2 | 2003-12-02 |
| Apparatus incorporating jet pump for well head cleaning Grant 6,453,996 - Carmichael , et al. September 24, 2 | 2002-09-24 |
| Well clean-up tool with improved cleaning member Grant 6,347,667 - Howlett , et al. February 19, 2 | 2002-02-19 |
| Down-hole tool with detachable cleaning pads Grant 6,343,648 - Carmichael , et al. February 5, 2 | 2002-02-05 |
| Apparatus and method for cleaning well risers App 20010018976 - Carmichael, Mark ; et al. | 2001-09-06 |
| Apparatus and method for circulating fluid in a well bore Grant 6,279,657 - Carmichael , et al. August 28, 2 | 2001-08-28 |
| Circulation tool Grant 6,253,861 - Carmichael , et al. July 3, 2 | 2001-07-03 |
| Compact well clean up tool with multifunction cleaning apparatus Grant 6,227,291 - Carmichael , et al. May 8, 2 | 2001-05-08 |
| Downhole flow control tool Grant 6,220,357 - Carmichael , et al. April 24, 2 | 2001-04-24 |
| Apparatus and method for circulating fluid in a borehole Grant 6,152,228 - Carmichael November 28, 2 | 2000-11-28 |
| Apparatus with retractable cleaning members Grant 6,152,221 - Carmichael , et al. November 28, 2 | 2000-11-28 |
| Detachable locking device for a control valve and method Grant 6,102,060 - Howlett , et al. August 15, 2 | 2000-08-15 |
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