Inventor
Charles R. Dawson
Inventor
Houston, TX, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling55%
C09KMaterials for miscellaneous applications, not provided for elsewhere27%
A61FFilters implantable into blood vessels9%
G01VGeophysics9%
PatentTitleYear
6,802,379'Liquid lift method for drilling risers'20046,634,430'Method for installation of evacuated tubular conduits'20036,173,713'Eye patch construction method'20015,901,795'Well collision avoidance'19994,568,392'Well treating fluid'19864,503,170'Shear thickening fluid'19854,397,354'Method of using a well treating fluid'19834,001,774'Method of transmitting signals from a drill bit to the surface'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1999Patents assigned to EXXON PRODUCTION RESEARCH CO (5)· patent assignee history
1977–2004Based in Houston, TX, US· patent location history
1986Patents assigned to EXXON RESEARCH ENGINEERING CO (1)· patent assignee history
2001Based in New Orleans, LA, US· patent location history
2003–2004Patents assigned to EXXONMOBIL UPSTREAM RES CO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EXXON PRODUCTION RESEARCH CO | 5 | 1977–1999 |
| EXXONMOBIL UPSTREAM RES CO | 2 | 2003–2004 |
| EXXON RESEARCH ENGINEERING CO | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 7 | 1977–2004 |
| New Orleans, LA, US | 1 | 2001 |