Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7033984 | Detergent compositions | Rudolfus Johannes Hafkamp | 2006-04-25 |
| 6713442 | Detergent compositions | Rudolfus Johannes Hafkamp, Rob Menting | 2004-03-30 |
| 6638896 | Fluids and techniques for hydrocarbon well completion | Raymond J. Tibbles, Mehmet Parlar, Frank F. Chang, Diankui Fu, Jonathan Mark Davison +2 more | 2003-10-28 |
| 6140277 | Fluids and techniques for hydrocarbon well completion | Raymond J. Tibbles, Mehmet Parlar, Frank F. Chang, Diankui Fu, Jonathan Mark Davison +2 more | 2000-10-31 |