Inventor
John R. Larson
Inventor
Boulder, CO, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils27%
Y10TTechnical subjects covered by former us classification20%
C09KMaterials for miscellaneous applications, not provided for elsewhere13%
E21BEarth or rock drilling13%
E02DFoundations7%
F17DPipe-line systems7%
F28GCleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes or boilers7%
G01DMeasuring not specially adapted for a specific variable7%
PatentTitleYear
6,665,990'High-tension high-compression foundation for tower structures'20035,634,520'Enhanced oil recovery process including the simultaneous injection of a miscible gas and water'19975,515,919'Enhanced oil recovery process including the simultaneous injection of a miscible gas and water'19965,008,085'Apparatus for thermal treatment of a hydrocarbon stream'19914,928,112'Ink curing apparatus'19904,849,025'Decoking hydrocarbon reactors by wet oxidation'19894,818,371'Viscosity reduction by direct oxidative heating'19894,778,586'Viscosity reduction processing at elevated pressure'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1991Patents assigned to RESOURCE TECHN ASS (4)· patent assignee history
1988–1991Based in Boulder, CO, US· patent location history
1990Patents assigned to HOWTEK INC (1)· patent assignee history
1990Based in Hamstead, NH, US· patent location history
1996–1997Patents assigned to CHEVRON USA INC (2)· patent assignee history
1996–1997Based in Orchard Point, SG· patent location history
2003Patents assigned to BARR ENGINEERING CO (1)· patent assignee history
2003Based in Bloomington, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RESOURCE TECHN ASS | 4 | 1988–1991 |
| CHEVRON USA INC | 2 | 1996–1997 |
| BARR ENGINEERING CO | 1 | 2003 |
| HOWTEK INC | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Boulder, CO, US | 4 | 1988–1991 |
| Orchard Point, SG | 2 | 1996–1997 |
| Bloomington, Minnesota, US | 1 | 2003 |
| Hamstead, NH, US | 1 | 1990 |