Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10280718 | Gravel pack apparatus having actuated valves | Christopher A. Hall, Ronald van Petegem | 2019-05-07 |
| 10082007 | Assembly for toe-to-heel gravel packing and reverse circulating excess slurry | Christopher A. Hall | 2018-09-25 |
| 9856718 | Method and apparatus for selective injection | — | 2018-01-02 |
| 9745818 | Downhole isolation methods and apparatus therefor | Brian Nutley, Ross Clarke, Kim Nutley | 2017-08-29 |
| 9677383 | Erosion ports for shunt tubes | John S. Sladic, Stephen McNamee, Christopher A. Hall, Floyd R. Simonds | 2017-06-13 |
| 9587459 | Downhole isolation methods and apparatus therefor | Brian Nutley, Ross Clarke, Kim Nutley | 2017-03-07 |
| 9523264 | Gravel pack crossover tool with low drag force | Patrick J. Zimmerman, Christopher A. Hall | 2016-12-20 |
| 9447661 | Gravel pack and sand disposal device | Christopher A. Hall, Patrick J. Zimmerman, Brian J. Ritchey, Ronald van Petegem | 2016-09-20 |
| 9441454 | Gravel pack apparatus having actuated valves | Christopher A. Hall, Ronald van Petegem | 2016-09-13 |
| 9428997 | Multi-zone bypass packer assembly for gravel packing boreholes | Christopher A. Hall | 2016-08-30 |
| 9359856 | Swellable packer in hookup nipple | — | 2016-06-07 |
| 9260950 | One trip toe-to-heel gravel pack and liner cementing assembly | Christopher A. Hall, Ronald van Petegem, Alvaro Jose Arrazola | 2016-02-16 |
| 9163478 | Inwardly swelling seal | Christopher A. Hall, Patrick J. Zimmerman, Glen Robitaille | 2015-10-20 |
| 9085960 | Gravel pack bypass assembly | Ronald van Petegem, Christopher A. Hall, Patrick J. Zimmerman | 2015-07-21 |
| 9068435 | Gravel pack inner string adjustment device | Ronald van Petegem, Christopher A. Hall, Patrick J. Zimmerman, Brian J. Ritchey, Rockni Van Clief | 2015-06-30 |
| 9057251 | Gravel pack inner string hydraulic locating device | Ronald van Petegem, Christopher A. Hall, Patrick J. Zimmerman, Brian J. Ritchey, Rockni Van Clief | 2015-06-16 |
| 8770290 | Gravel pack assembly for bottom up/toe-to-heel packing | Ronald van Petegem | 2014-07-08 |
| 8695709 | Self-orienting crossover tool | Patrick J. Zimmerman, Christopher A. Hall | 2014-04-15 |
| 5234552 | Glycol reboiler vapor condenser | Robert L. McGrew | 1993-08-10 |