Inventor
Daryl L. Pritchard
Inventor
Shenandoah, TX, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling93%
Y10TTechnical subjects covered by former us classification7%
PatentTitleYear
8,245,792'Drill bit with weight and torque sensors and method of making a drill bit'20128,162,077'Drill bit with weight and torque sensors'20128,100,196'Method and apparatus for collecting drill bit performance data'20127,987,925'Method and apparatus for collecting drill bit performance data'20117,946,357'Drill bit with a sensor for estimating rate of penetration and apparatus for using same'20117,849,934'Method and apparatus for collecting drill bit performance data'20107,604,072'Method and apparatus for collecting drill bit performance data'20097,594,552'Expandable reamer apparatus for enlarging boreholes while drilling'20097,549,485'Expandable reamer apparatus for enlarging subterranean boreholes and methods of use'20097,510,026'Method and apparatus for collecting drill bit performance data'20097,506,695'Method and apparatus for collecting drill bit performance data'20097,497,276'Method and apparatus for collecting drill bit performance data'20097,308,937'Expandable reamer apparatus for enlarging boreholes while drilling and methods of use'20077,036,611'Expandable reamer apparatus for enlarging boreholes while drilling and methods of use'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2012Patents assigned to BAKER HUGHES INC (14)· patent assignee history
2006–2012Based in Shenandoah, TX, US· patent location history
2012Patents assigned to TRINH TU TIEN (3)· patent assignee history
2012Patents assigned to GLASGOW KEITH (2)· patent assignee history
2012Patents assigned to PRITCHARD DARYL (2)· patent assignee history
2012Patents assigned to SULLIVAN ERIC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 14 | 2006–2012 |
| TRINH TU TIEN | 3 | 2012 |
| GLASGOW KEITH | 2 | 2012 |
| PRITCHARD DARYLself | 2 | 2012 |
| SULLIVAN ERIC | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shenandoah, Texas, US | 14 | 2006–2012 |