Inventor
Charles J. Ruff
Inventor
Houston, TX, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds32%
C08LCompositions of macromolecular compounds14%
C10MLubricating compositions14%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
C08JWorking-up5%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%
Y10TTechnical subjects covered by former us classification5%
C07CAcyclic or carbocyclic compounds2%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
PatentTitleYear
10,465,022Ethylene-propylene copolymeric compositions with long methylene sequence lengths201910,100,183Propylene polymers20189,796,645'Poly alpha olefin compositions'20179,657,122'Ethylene-propylene copolymeric compositions with long methylene sequence lengths'20179,399,746'Poly alpha olefin compositions'20169,382,411'Propylene polymers'20169,365,788'Process to produce improved poly alpha olefin compositions'20169,273,163'Hydrosilation of vinyl-terminated macromonomers'20169,234,150'Low viscosity engine oil compositions'20169,234,152'High efficiency engine oil compositions'20169,234,151'Lubricating compositions'20169,068,034'In-reactor polymer blends'20158,940,839'Diblock copolymers prepared by cross metathesis'20158,841,397'Vinyl terminated higher olefin polymers and methods to produce thereof'20148,841,394'Vinyl terminated higher olefin copolymers and methods to produce thereof'20148,809,456'Polyolefin compositions and methods of production thereof'20148,426,659'Vinyl terminated higher olefin polymers and methods to produce thereof'20138,399,724'Vinyl terminated higher olefin copolymers and methods to produce thereof'20138,288,480'In-reactor polymer blends'20126,114,477'Polymerization process'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2019Based in Houston, TX, US· patent location history
2012–2016Patents assigned to EXXONMOBIL CHEM PATENTS INC (11)· patent assignee history
2012–2017Patents assigned to RUFF CHARLES J (9)· patent assignee history
2013–2015Patents assigned to HAGADORN JOHN R (4)· patent assignee history
2013–2015Patents assigned to BRANT PATRICK (3)· patent assignee history
2016–2019Patents assigned to EXXONMOBIL CHEMICAL PATENTS INC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXONMOBIL CHEM PATENTS INC | 11 | 2012–2016 |
| RUFF CHARLES Jself | 9 | 2012–2017 |
| EXXONMOBIL CHEMICAL PATENTS INC | 5 | 2016–2019 |
| HAGADORN JOHN R | 4 | 2013–2015 |
| BRANT PATRICK | 3 | 2013–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 20 | 2000–2019 |