Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9540880 | Magnetic latching device for downhole wellbore intercept operations | Charles Henry Duck, Jr., Christopher William Lillis | 2017-01-10 |
| 9297249 | Method for improving wellbore survey accuracy and placement | Leon Ceh, Euan Forbes, Kenneth Stenerson | 2016-03-29 |
| 9238959 | Methods for improved active ranging and target well magnetization | Robert A. Moore | 2016-01-19 |
| 8947094 | At-bit magnetic ranging and surveying | Leon Ceh, Kenneth Stenerson, Euan Forbes | 2015-02-03 |
| 8570834 | Method of acoustic ranging | — | 2013-10-29 |
| 8026722 | Method of magnetizing casing string tubulars for enhanced passive ranging | — | 2011-09-27 |
| 7816922 | Magnetization of target well casing string tubulars for enhanced passive ranging | — | 2010-10-19 |
| 7816923 | Enhanced passive ranging methodology for well twinning | — | 2010-10-19 |
| 7712519 | Transverse magnetization of casing string tubulars | Leon Ceh | 2010-05-11 |
| 7679481 | Magnetized casing string tubulars | Kenneth Stenerson, Leon Ceh | 2010-03-16 |
| 7679480 | Method for magnetizing casing string tubulars | Kenneth Stenerson, Leon Ceh | 2010-03-16 |
| 7656161 | Magnetization of target well casing strings tubulars for enhanced passive ranging | — | 2010-02-02 |
| 7617049 | Distance determination from a magnetically patterned target well | Herbert M. J. Illfelder | 2009-11-10 |
| 7538650 | Apparatus and method for magnetizing casing string tubulars | Kenneth Stenerson, Leon Ceh | 2009-05-26 |
| 7260479 | Method for locating casing joints using measurement while drilling tool | — | 2007-08-21 |
| 7002484 | Supplemental referencing techniques in borehole surveying | — | 2006-02-21 |
| 6985814 | Well twinning techniques in borehole surveying | — | 2006-01-10 |
| 6937023 | Passive ranging techniques in borehole surveying | — | 2005-08-30 |
| 6882937 | Downhole referencing techniques in borehole surveying | — | 2005-04-19 |
| 6480119 | Surveying a subterranean borehole using accelerometers | — | 2002-11-12 |
| 5675488 | Location determination using vector measurements | — | 1997-10-07 |