Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5287929 | Method of using dispersant compositions for subterranean well drilling and completion | James B. Bloys | 1994-02-22 |
| 5221489 | Sulfonated polymeric dispersant compositions for subterranean well drilling, completion, and cementing | James B. Bloys | 1993-06-22 |