Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9383139 | Sulfur melting system and method | Roy Anthony Pickren, David Brian Singleton | 2016-07-05 |
| 9295932 | Sulfur particulates remover | Roy Anthony Pickren | 2016-03-29 |
| 7322387 | Reception, processing, handling and distribution of hydrocarbons and other fluids | David Landry | 2008-01-29 |
| 7097386 | Simultaneous development of underground caverns and deposition of materials | David Landry, David Brian Singleton | 2006-08-29 |