Inventor
Robert R. McElvain
Inventor
Kingwood, TX, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry40%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds30%
B01DSeparation8%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]8%
C08LCompositions of macromolecular compounds5%
C01BNon-metallic elements3%
G01FMeasuring volume, volume flow, mass flow or liquid level3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
10,792,609Nitrogen conservation in polymerization processes202010,611,863Polymerization catalyst delivery202010,179,826Polymerization catalyst delivery20199,687,815'Treater regeneration'20179,610,558'Energy efficient polyolefin process'20179,289,748'Treater regeneration'20169,221,920'Energy efficient polyolefin process'20158,765,884'Energy efficient polyolefin process'20148,569,433'Energy efficient polyolefin process'20138,303,899'Energy efficient polyolefin process'20128,202,949'System and method for measuring pressure and flow in a loop reactor'20128,128,877'Energy efficient polyolefin process'20128,017,701'Energy efficient polyolefin process'20117,547,750'Apparatus and method for removing polymer solids from slurry loop reactor'20097,517,947'Polymer transfer within a polymerization system'20097,109,290'Polymer transfer within a polymerization system'20065,071,927'High-temperature slurry polymerization of ethylene'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991Based in Houston, TX, US· patent location history
2006–2016Patents assigned to CHEVRON PHILLIPS CHEMICAL CO (11)· patent assignee history
2006–2020Based in Kingwood, TX, US· patent location history
2012Patents assigned to GUPTA ANURAG (3)· patent assignee history
2012Patents assigned to HOTTOVY JOHN D (3)· patent assignee history
2012Patents assigned to MCELVAIN ROBERT R (3)· patent assignee history
2017–2020Patents assigned to CHEVRON PHILLIPS CHEMICAL CO LP (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEVRON PHILLIPS CHEMICAL CO | 11 | 2006–2016 |
| CHEVRON PHILLIPS CHEMICAL CO LP | 5 | 2017–2020 |
| GUPTA ANURAG | 3 | 2012 |
| HOTTOVY JOHN D | 3 | 2012 |
| MCELVAIN ROBERT Rself | 3 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kingwood, Texas, US | 16 | 2006–2020 |
| Houston, Texas, US | 1 | 1991 |