Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9650865 | Autonomous active flow control valve system | Namhyo Kim, Kai Sun, Luis Phillipe Tosi, Krystian K. Maskos | 2017-05-16 |
| 9531303 | Flow energy piezoelectric bimorph nozzle harvester | Stewart Sherrit, Phillip E. Walkemeyer, Jeffrey L. Hall, Hyeong Jae Lee, Tim Colonius +4 more | 2016-12-27 |
| 9518438 | High temperature packers | Kai Sun | 2016-12-13 |
| 8297368 | Systems and methods for initiating annular obstruction in a subsurface well | Larry J. Chrusch, Jackie C. Sims, Krystian K. Maskos, Luis Carlos Baralho Bianco | 2012-10-30 |
| 7997344 | Multi-function indicating tool | — | 2011-08-16 |
| 7823637 | Delayed acting gravel pack fluid loss valve | William N. Triplett | 2010-11-02 |
| 7647968 | Screen saver sub | Christian F. Bayne | 2010-01-19 |
| 7451816 | Washpipeless frac pack system | Anderson da Silva Amaral, Kenneth A. MacDonald, William N. Triplett | 2008-11-18 |
| 7290610 | Washpipeless frac pack system | Anderson DeSilva Amaral, Kenneth A. MacDonald, William N. Triplett | 2007-11-06 |
| 7278493 | Auto entry guide | Elmer R. Peterson | 2007-10-09 |
| 7128151 | Gravel pack crossover tool with single position multi-function capability | — | 2006-10-31 |
| 7032666 | Gravel pack crossover tool with check valve in the evacuation port | — | 2006-04-25 |