Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481316 | Method for inhibiting the degradation of an aqueous solution of an acrylamide polymer in a petroleum recovery process | Shoichi Kanda | 1984-11-06 |
| 4393163 | Method for stabilizing an acrylamide polymer in a petroleum recovery process | Shoichi Kanda | 1983-07-12 |