Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332688 | Aqueous acid solution containing an acrylamido alkanesulfonic acid polymer | — | 1982-06-01 |
| 4277580 | Terpolymer of N-vinyl pyrrolidone in alkoxylated form | Joseph C. Allen | 1981-07-07 |
| 4219429 | Composition and process for stimulating well production | Joseph C. Allen | 1980-08-26 |
| 4210205 | Secondary recovery process | Joseph C. Allen | 1980-07-01 |
| 4206058 | Method for stimulating well production | — | 1980-06-03 |
| 4200154 | Composition and method for stimulating well production | — | 1980-04-29 |
| 4200151 | Secondary recovery process | — | 1980-04-29 |