Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356551 | Multifunctional viscosity index improver for lubricating oil compositions | John E. Johnston | 1994-10-18 |
| 5348673 | Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties | Antonio Gutierrez, Mark J. Struglinski | 1994-09-20 |
| 5328624 | Stabilized grafted ethylene copolymer additive useful in oil compositions | — | 1994-07-12 |
| 5312556 | Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one tertiary amine group and degraded ethylene copolymer | Mark J. Struglinski | 1994-05-17 |
| 5290461 | Multifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric properties (PT-768) | Antonio Gutierrez, Mark J. Struglinski | 1994-03-01 |
| 5290868 | Multifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one secondary amine group and degraded ethylene copolymer | Antonio Gutierrez, Mark J. Struglinski | 1994-03-01 |