Inventor
Howard B. Irvin
Inventor
Bartlesville, OK, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation18%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds18%
C07CAcyclic or carbocyclic compounds15%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
C08CTreatment or chemical modification of rubbers6%
C09KMaterials for miscellaneous applications, not provided for elsewhere6%
C10KPurifying or modifying the chemical composition of combustible gases containing carbon monoxide6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
C08LCompositions of macromolecular compounds3%
PatentTitleYear
4,604,216'Drilling fluids'19864,548,982'Drilling fluids'19854,418,191'Solvent purification'19834,408,039'Separation of polymer of conjugated diene from a solution polymerization solvent using prestripping step'19834,406,750'Solvent removal from polymer solution utilizing flashed vapor as a heat source'19834,388,444'Preparing blends of a synthetic rubber with a poly(arylene oxide) by distillative displacement'19834,320,091'Apparatus for two stage catalytic hydrogenation of olefinically unsaturated dinitriles'19824,278,506'Polymer solution purification'19814,263,228'Two stage catalytic hydrogenation of olefinically unsaturated dinitriles'19814,232,137'Cooling an alpha-methylstyrene polymerization mass'19804,177,250'Method of removing acetylene and sulfur compounds from gases by absorption in dimethyl formamide'19794,121,029'Polyolefin reactor system'19784,086,288'Acetylenes removal from olefin streams for alkylation by dimethyl formamide absorption'19784,060,520'Continuous reaction for preparation of arylene sulfide polymer'19774,000,044'Fractionation of immiscible liquids of equal density'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1986Patents assigned to PHILLIPS PETROLEUM CO (15)· patent assignee history
1976–1986Based 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 | 15 | 1976–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bartlesville, OK, US | 15 | 1976–1986 |