Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664246 | Apparatus for producing and recovering overbased petroleum sulfonate | Douglas S. Jack | 1987-05-12 |
| 4543194 | Precarbonation in overbasing calcium petroleum sulfonates | Douglas S. Jack | 1985-09-24 |
| 4541940 | Stirred vortex tank reactor and method of CO.sub.2 addition for producing overbased petroleum sulfonate | — | 1985-09-17 |
| 4485022 | Lubricating compositions containing normal-alkyl substituted 2-thiazoline disulfide antioxidants | — | 1984-11-27 |
| 4362633 | Molybdenum-containing aminated sulfurized olefin lubricating oil additives | C. Thomas West | 1982-12-07 |
| 4352911 | Sulfurized/aminated mixture of ethylene-based polyolefin and polyisobutylene | — | 1982-10-05 |
| 4320017 | Sulfurized/aminated mixture of ethylene-based polyolefin and polyisobutylene for lubricating oil | — | 1982-03-16 |
| 4317739 | Aminated sulfurized olefin funtionalized with a boron compound and formaldehyde | — | 1982-03-02 |
| 4317772 | Process for preparation of aminated sulfurized olefins using alkaline earth metal compounds | — | 1982-03-02 |
| 4317738 | Dispersants and dispersant viscosity modifiers from oxidized-sulfurized olefins | — | 1982-03-02 |