Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8011433 | Bidirectional gravel packing in subterranean wells | Bryan Ping Chew Chay, Chee Voon Kin | 2011-09-06 |
| 6997263 | Multi zone isolation tool having fluid loss prevention capability and method for use of same | Patrick Francis Campbell, William David Henderson, Jay B. Shivers | 2006-02-14 |
| 6491097 | Abrasive slurry delivery apparatus and methods of using same | Dean S. Oneal | 2002-12-10 |