Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11199086 | Detecting changes in an environmental condition along a wellbore | Michel Joseph LeBlanc, Wolfgang Hartmut Nitsche, Yenny Natali Martinez, John L. Maida, David Andrew Barfoot | 2021-12-14 |
| 11105953 | Detecting changes in an environmental condition along a wellbore | Wolfgang Hartmut Nitsche, Yenny Natali Martinez, David Andrew Barfoot, Michel Joseph LeBlanc, John L. Maida | 2021-08-31 |
| 10337282 | Methods and compositions for reducing water production in fractures or voids in subterranean formations | Julio Vasquez, Victor Daniel Escobar, Victor Manuel Cancino, Larry S. Eoff, Cristian R. Ramirez | 2019-07-02 |
| 9021875 | Bi-directional flow and distributed temperature sensing in subterranean wells | — | 2015-05-05 |
| 8930143 | Resolution enhancement for subterranean well distributed optical measurements | Gerard Glasbergen | 2015-01-06 |
| 7779683 | Tracking fluid displacement along a wellbore using real time temperature measurements | Gerard Glasbergen, Diederik van Batenburg, Mary Van Domelen, David O. Johnson, David Ewert +1 more | 2010-08-24 |
| 7730774 | Tracking fluid displacement along a wellbore using real time temperature measurements | Gerard Glasbergen, Diederik van Batenburg, Mary Van Domeien, David O. Johnson, David Ewert +1 more | 2010-06-08 |
| 7637318 | Pressure communication assembly external to casing with connectivity to pressure source | David O. Johnson | 2009-12-29 |
| 7398680 | Tracking fluid displacement along a wellbore using real time temperature measurements | Gerard Glasbergen, Diederik van Batenburg, Mary Van Domelen, David O. Johnson, David Ewert +1 more | 2008-07-15 |
| 7360412 | Single point and fiber optic temperature measurement for correction of a gas column weight in a well | David O. Johnson, Christopher David | 2008-04-22 |
| 7325597 | Safety valve apparatus for downhole pressure transmission systems | Paul D. Ringgenberg | 2008-02-05 |