Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4780500 | Water retention aids | Joseph V. Sinka, Jose L. Villa, Edwin L. Kelley, Albert L. Resnick | 1988-10-25 |
| 4751322 | Monomer purification | Stephen A. Fischer, Reuben H. Grinstein, Gary L. Speenburgh | 1988-06-14 |
| 4699225 | Drilling fluids containing AMPS, acrylic acid, itaconic acid polymer | — | 1987-10-13 |
| 4647384 | Aqueous drilling fluids containing fluid loss additives | Jose L. Villa | 1987-03-03 |
| 4622373 | Fluid loss control additives from AMPS polymers | — | 1986-11-11 |
| 4622370 | Aqueous drilling fluids containing fluid loss additives | Jose L. Villa | 1986-11-11 |
| 4599372 | Self-inverting water-in-oil polymer emulsions having low pour point temperatures | Reuben H. Grinstein | 1986-07-08 |
| 4319020 | Polyquaternary flocculants | Anthony T. Coscia, Robert F. Tarvin | 1982-03-09 |