Inventor
Roy C. Lee
Inventor
Bartlesville, OK, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils29%
C01BNon-metallic elements14%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds14%
C10LFuels not otherwise provided for14%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
4,940,833'Olefin monomer separation process'19904,419,968'Method and apparatus for removing hydrogen sulfide from fuel for an internal combustion engine'19834,347,811'Method and apparatus for removing hydrogen sulfide from fuel for an internal combustion engine'19824,321,061'Motor fuel'19824,003,343'Method and apparatus for maintaining the operating temperature in a device for reducing engine exhaust pollutants'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1990Patents assigned to PHILLIPS PETROLEUM CO (5)· patent assignee history
1977–1990Based in Bartlesville, OK, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILLIPS PETROLEUM CO | 5 | 1977–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bartlesville, OK, US | 5 | 1977–1990 |