Downhole tools having mechanical joints with enhanced surfaces
US-9909365-B2 · Mar 6, 2018 · US
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Lin Chih patents
Lin Chih is listed as an inventor on 6 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Lin Chih |
| Total patents | 6 |
| First publication | Oct 13, 2015 |
| Latest publication | Mar 6, 2018 |
Notable patents
Publications ranked by popularity score, then publication date.
Downhole motor with diamond-like carbon coating on stator and/or rotor and method of making said downhole motor
US-9340854-B2 · May 17, 2016 · US
Drill bit with a dynamic metal seal
US-9316055-B2 · Apr 19, 2016 · US
Enhanced backup ring edge features for metal face seal in roller cone drill bits
US-9249629-B2 · Feb 2, 2016 · US
Enhanced Backup Ring Edge Features for Metal Face Seal in Roller Cone Drill Bits
US-2015330152-A1 · Nov 19, 2015 · US
Enhanced backup ring features for metal face seal in roller cone drill bits
US-9157280-B2 · Oct 13, 2015 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Baker Hughes Inc | 6 |
| Lin Chih | 3 |
| Scott Danny E | 1 |
| Dick Aaron J | 1 |
| Schroder Jon D | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B10/25 | 4 |
| E21B2010/225 | 3 |
| E21B4/02 | 2 |
| E21B10/22 | 2 |
| F16J15/344 | 2 |