Inventor
Billy G. Hurd
Inventor
Coppell, TX, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere53%
E21BEarth or rock drilling33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
4,981,176'Method for using foams to improve alkaline flooding oil recovery'19914,921,576'Method for improving sweep efficiency in CO.sub.2 oil recovery'19904,854,385'Oil recovery process utilizing gravitational forces'19894,741,399'Oil recovery process utilizing gravitational forces'19884,629,000'Oil recovery by surfactant-alcohol waterflooding'19864,463,806'Method for surfactant waterflooding in a high brine environment'19844,458,760'Oil recovery process for stratified high salinity reservoirs'19844,421,168'Surfactant waterflooding with graded salinity drive for oil recovery'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1990Patents assigned to MOBIL OIL CORP (7)· patent assignee history
1983–1986Based in Dallas, TX, US· patent location history
1988–1991Based in Coppell, TX, US· patent location history
1991Patents assigned to MOBIL OIL (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOBIL OIL CORP | 7 | 1983–1990 |
| MOBIL OIL | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Coppell, Texas, US | 4 | 1988–1991 |
| Dallas, Texas, US | 4 | 1983–1986 |