Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8522863 | Propellant fracturing system for wells | Guy B. Spear, Don Landis | 2013-09-03 |
| 7487827 | Propellant cartridge with restrictor plugs for fracturing wells | — | 2009-02-10 |
| 7409911 | Propellant for fracturing wells | Richard S. Passamaneck | 2008-08-12 |
| 7073589 | System for fracturing wells using supplemental longer-burning propellants | Richard S. Passamaneck | 2006-07-11 |