Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4735733 | Viscosifier, its uses, and its manufacture | Jack L. Blumenthal, Edward F. Brooks | 1988-04-05 |
| 4689161 | Viscosifier, its uses, and its manufacture | Jack L. Blumenthal, Edward F. Brooks | 1987-08-25 |