Inventor
Richard L. Christiansen
Inventor
Littleton, CO, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties38%
E21BEarth or rock drilling24%
C09KMaterials for miscellaneous applications, not provided for elsewhere14%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]10%
C10LFuels not otherwise provided for5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
7,284,604'Methods for measurement of a dimensional characteristic and methods of predictive modeling related thereto'20077,224,475'Methods and apparatus for measurement of a dimensional characteristic and methods of predictive modeling related thereto'20075,639,925'Additives and method for controlling clathrate hydrates in fluid systems'19975,505,074'Apparatus and method for determining minimum miscibility pressure'19965,267,615'Sequential fluid injection process for oil recovery from a gas cap'19935,245,859'Method of measuring capillary pressures'19935,232,049'Sequentially flooding a subterranean hydrocarbon-bearing formation with a repeating cycle of immiscible displacement gases'19935,019,279'Process for enriching a gas'19914,817,423'Method and apparatus for determing distribution of fluids in a porous sample'19894,627,273'Apparatus and method for determining the minimum miscibility pressure of a gas in a liquid'19864,621,522'Method of determining the minimum level of gas enrichment for a miscible flood'19864,610,160'Method of determining the minimum level of enrichment for a miscible gas flood'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1996Patents assigned to MARATHON OIL CO (8)· patent assignee history
1986–2007Based in Littleton, CO, US· patent location history
1993Patents assigned to CHRISTIANSEN RICHARD L (1)· patent assignee history
1993Patents assigned to SMITH SIDNEY R (1)· patent assignee history
1997Patents assigned to COLORADO SCHOOL OF MINES (1)· patent assignee history
2007Patents assigned to BATTELLE ENERGY ALLIANCE LLC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MARATHON OIL CO | 8 | 1986–1996 |
| BATTELLE ENERGY ALLIANCE LLC | 2 | 2007 |
| CHRISTIANSEN RICHARD Lself | 1 | 1993 |
| COLORADO SCHOOL OF MINES | 1 | 1997 |
| SMITH SIDNEY R | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Littleton, CO, US | 12 | 1986–2007 |