Inventor
George B. Witman, IV
Inventor
Sugar Land, TX, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
7,690,446'Single cone rock bit having inserts adapted to maintain hole gage during drilling'20107,665,547'Drill bit reservoir with controllable relief pressure'20107,401,668'Single cone rock bit having inserts adapted to maintain hole gage during drilling'20087,100,711'Single cone rock bit having inserts adapted to maintain hole gage during drilling'20066,814,162'One cone bit with interchangeable cutting structures, a box-end connection, and integral sensory devices'20046,719,073'Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2010Patents assigned to SMITH INTERNATIONAL (6)· patent assignee history
2004Based in Sugarland, TX, US· patent location history
2006–2010Based in Sugar Land, TX, US· patent location history
2010Based in Fort Worth, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SMITH INTERNATIONAL | 6 | 2004–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sugar Land, Texas, US | 3 | 2006–2010 |
| Sugarland, Texas, US | 2 | 2004 |
| Fort Worth, Texas, US | 1 | 2010 |