Inventor
Barrett L. Cupples
Inventor
Kingwood, TX, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds37%
C10MLubricating compositions26%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions16%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C10GCracking hydrocarbon oils5%
PatentTitleYear
5,994,605'High viscosity polyalphaolefins'19995,817,899'Polyalphaolefin dimers having low kinematic viscosities'19985,550,307'Increased dimer yield of olefin oligomers through catalyst modifications'19965,420,373'Controlled formation of olefin oligomers'19954,282,392'Alpha-olefin oligomer synthetic lubricant'19814,213,001'Oligomerizing alpha-olefins with a heterogeneous catalyst'19804,045,507'Method of oligomerizing 1-olefins'19774,045,508'Method of making alpha-olefin oligomers'19774,032,591'Preparation of alpha-olefin oligomer synthetic lubricant'1977RE029004'Deactivating and removing aluminum and titanium contaminant from Ziegler-Natta polymerization mixtures'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1981Based in Franklin Township, Westmoreland County, PA, US· patent location history
1977–1981Patents assigned to GULF RESEARCH DEVELOPMENT CO (5)· patent assignee history
1977Based in Penn Hills Township, Allegheny County, PA, US· patent location history
1995–1999Patents assigned to CHEVRON CHEM CO (4)· patent assignee history
1995–1999Based in Kingwood, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GULF RESEARCH DEVELOPMENT CO | 5 | 1977–1981 |
| CHEVRON CHEM CO | 4 | 1995–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kingwood, Texas, US | 4 | 1995–1999 |
| Franklin Township, Westmoreland County, Pennsylvania, US | 3 | 1976–1981 |
| Penn Hills Township, Allegheny County, Pennsylvania, US | 3 | 1977 |