| 4904367 |
Removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range |
Donald B. Trust |
1990-02-27 |
| 4820400 |
Process for removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range (OP-3379) |
Donald B. Trust, Rudolph R. Savory |
1989-04-11 |
| 4702817 |
Removing haze from hydrocarbon oil mixture boiling in the lubricating oil range |
Steven Ackerman |
1987-10-27 |
| 4629546 |
Method and apparatus for centrifugal separation of dispersed phase from a continuous liquid phase |
— |
1986-12-16 |
| 4627901 |
Separating wax from hydrocarbon mixture boiling in the lubricating oil range |
Anthony E. Cerkanowicz, Robert J. L. Chimenti, Donald J. Mintz |
1986-12-09 |
| 4622118 |
Method and apparatus for separating wax/water from hydrocarbon oil mixture boiling in the lubricating oil range |
Robert J. L. Chimenti, Anthony E. Cerkanowicz |
1986-11-11 |
| 4512878 |
Used oil re-refining |
Lloyd E. Reid, Keith C. Yao |
1985-04-23 |
| 4490240 |
Removal of corrodants from NMP solvent by contacting with sacrificial metal |
Roy V. Comeaux, Milton D. Leighton |
1984-12-25 |
| 4346008 |
Rotary drum filter |
Milton D. Leighton |
1982-08-24 |
| 4314886 |
Mechanically agitated liquid-vapor contacting apparatus |
— |
1982-02-09 |
| 4309288 |
Rotary drum filter |
Derek J. Watridge |
1982-01-05 |
| 4217203 |
Continuous autorefrigerative dewaxing process and apparatus |
— |
1980-08-12 |
| 4216075 |
Combination dewaxing process |
— |
1980-08-05 |