Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568215 | Method and apparatus for melting a particulate material | John A. Schofield | 2003-05-27 |
| 4547299 | Drilling fluid containing a copolymer filtration control agent | — | 1985-10-15 |
| 4383988 | Gelled antiperspirant | James Teng | 1983-05-17 |
| 4309329 | Aqueous drilling fluid additive | Alphonse C. Perricone, Dorothy P. Enright | 1982-01-05 |
| 4293427 | Drilling fluid containing a copolymer filtration control agent | Dorothy P. Enright, Alphonse C. Perricone | 1981-10-06 |
| 4288582 | Aqueous drilling fluid additive, composition and process | Alphonse C. Perricone, Dorothy P. Enright | 1981-09-08 |
| 4283517 | Continuous process for solution polymerization of acrylamide | Alphonse C. Perricone | 1981-08-11 |
| 4268400 | Aqueous drilling fluid additive, composition and process | Alphonse C. Perricone, Dorothy P. Enright | 1981-05-19 |
| 4193989 | Sunscreen gel | James Teng, Marcella C. Stubits | 1980-03-18 |
| 4183764 | Gelled lacquer | James Teng | 1980-01-15 |