Inventor
Douglas G. Ryan
Inventor
Rockaway, NJ, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils42%
B01DSeparation31%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids15%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C10MLubricating compositions4%
C23FNon-mechanical removal of metallic material from surface4%
PatentTitleYear
4,904,367'Removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range'19904,820,400'Process for removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range (OP-3379)'19894,702,817'Removing haze from hydrocarbon oil mixture boiling in the lubricating oil range'19874,629,546'Method and apparatus for centrifugal separation of dispersed phase from a continuous liquid phase'19864,627,901'Separating wax from hydrocarbon mixture boiling in the lubricating oil range'19864,622,118'Method and apparatus for separating wax/water from hydrocarbon oil mixture boiling in the lubricating oil range'19864,512,878'Used oil re-refining'19854,490,240'Removal of corrodants from NMP solvent by contacting with sacrificial metal'19844,346,008'Rotary drum filter'19824,314,886'Mechanically agitated liquid-vapor contacting apparatus'19824,309,288'Rotary drum filter'19824,217,203'Continuous autorefrigerative dewaxing process and apparatus'19804,216,075'Combination dewaxing process'19803,975,396'Deasphalting process'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1990Patents assigned to EXXON RESEARCH ENGINEERING CO (13)· patent assignee history
1976Based in Livingston, NJ, US· patent location history
1980Patents assigned to RYAN DOUGLAS G (1)· patent assignee history
1980–1990Based in Rockaway, NJ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXON RESEARCH ENGINEERING CO | 13 | 1976–1990 |
| RYAN DOUGLAS Gself | 1 | 1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rockaway, New Jersey, US | 13 | 1980–1990 |
| Livingston, New Jersey, US | 1 | 1976 |