Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374364 | Multifunction viscosity index improvers | Nicholas Benfaremo, Robert T. Biggs | 1994-12-20 |
| 5356999 | Multifunctional viscosity index improvers based on polymers containing sulfonamides | Benjamin J. Kaufman, Robert T. Biggs | 1994-10-18 |
| 5275746 | Multifunctional viscosity index improver containing phenothiazine | Benjamin J. Kaufman, Theodore E. Nalesnik, Robert T. Biggs | 1994-01-04 |