Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790812 | Acid soluble, high fluid loss pill for lost circulation | William S. Halliday, Dennis K. Clapper, Michael A. Jarrett | 2004-09-14 |
| 6110875 | Methods and materials for degrading xanthan | Robert M. Tjon-Joe-Pin, Bing Yang | 2000-08-29 |