Inventor
Dennis E. O'Brien
Inventor
Arlington Heights, IL, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds24%
B01DSeparation16%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
C09KMaterials for miscellaneous applications, not provided for elsewhere9%
C08JWorking-up7%
C10GCracking hydrocarbon oils5%
Y02PClimate change mitigation technologies in the production or processing of goods4%
Y10TTechnical subjects covered by former us classification4%
C01BNon-metallic elements2%
PatentTitleYear
7,687,677'Process for recovering thermal energy from a reactor effluent stream'20107,528,290'Apparatuses and methods for separating butene-1 from a mixed C4 feed'20097,339,088'Alkylbenzene refining process and apparatus'20087,267,746'Dividing wall distillation column control apparatus'20076,762,334'Alkylaromatic process with removal of aromatic byproducts using efficient distillation'20046,483,002'Integrated fractional distillation for adsorptive separation process'20026,479,720'Alkylaromatic process using efficient prefractionation'20026,417,420'Alkylaromatic process with removal of aromatic byproducts using efficient distillation'20026,407,303'Isomerization process with adsorptive separation and integrated fractional distillation'20026,137,021'Conversion of an HF alkylation unit'20006,069,285'Alkylaromatic process using a solid alkylation catalyst and a benzene rectifier'20005,983,476'Conversion of an HF alkylation unit'19994,568,392'Well treating fluid'19864,397,354'Method of using a well treating fluid'19834,384,793'Temperature profile monitoring method and apparatus'19834,381,417'Catalytic dehydrogenation process'19834,381,418'Catalytic dehydrogenation process'19834,364,821'Fluid contacting process'19824,361,658'Process for polymeric gelation'19824,333,817'Separation of normally gaseous hydrocarbons from a catalytic reforming effluent and recovery of purified hydrogen'19824,322,329'Process for controlled gelation of polymeric solution (C-971)'19824,313,862'Process for gelation of polymeric solution (C-1042)'19824,307,063'Fluid contacting apparatus'19814,282,130'Process for controlled gelation of polymeric solution (C-669)'19814,183,406'Method of treating a borehole using gellable polymers'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1986Patents assigned to EXXON PRODUCTION RESEARCH CO (3)· patent assignee history
1980–1986Based in Houston, TX, US· patent location history
1981–1983Patents assigned to UOP INC (6)· patent assignee history
1981–1986Patents assigned to EXXON RESEARCH ENGINEERING CO (5)· patent assignee history
1981–2010Based in Arlington Heights, IL, US· patent location history
1982Based in Katy, TX, US· patent location history
1999–2010Patents assigned to UOP LLC (12)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UOP LLC | 12 | 1999–2010 |
| UOP INC | 6 | 1981–1983 |
| EXXON RESEARCH ENGINEERING CO | 5 | 1981–1986 |
| EXXON PRODUCTION RESEARCH CO | 3 | 1980–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Arlington Heights, Illinois, US | 18 | 1981–2010 |
| Houston, Texas, US | 6 | 1980–1986 |
| Katy, Texas, US | 1 | 1982 |