Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548452 | Weight material for drilling fluids and method of creating and maintaining the desired weight | James A. Nattier | 2003-04-15 |
| 6180573 | Weight material for drilling fluids and method of creating and maintaining the desired weight | James A. Nattier | 2001-01-30 |
| 5021170 | Oil-based well bore fluids and gellants therefor | Louis Sokol | 1991-06-04 |