Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8281865 | Tubular valve system and method | Paul Joseph, Luis E. Mendez | 2012-10-09 |
| 7730941 | Expandable tool with enhanced expansion capability | Shawn E. Nowlin | 2010-06-08 |
| 5366020 | Reinflatable external casting packer and method of casing | Vel Berzin | 1994-11-22 |
| 5201369 | Reinflatable external casing packer | Vel Berzin | 1993-04-13 |