Rotary drill bits with back-up cutting elements to optimize bit life
US-10214966-B2 · Feb 26, 2019 · US
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Chen Shilin patents
Chen Shilin holds 29 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 29 |
| Recent patents | 0 |
| First publication | May 7, 2015 |
| Latest publication | Feb 26, 2019 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
System and method for analyzing downhole drilling parameters using an opto-analytical device
US-10167718-B2 · Jan 1, 2019 · US
PDC bits with mixed cutter blades
US-10162911-B2 · Dec 25, 2018 · US
Rotary drill bit and method for designing a rotary drill bit for directional and horizontal drilling
US-10036207-B2 · Jul 31, 2018 · US
System and method for determining torsion using an opto-analytical device
US-10012067-B2 · Jul 3, 2018 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Rotary drill bits with back-up cutting elements to optimize bit life
US-10214966-B2 · Feb 26, 2019 · US
System and method for analyzing downhole drilling parameters using an opto-analytical device
US-10167718-B2 · Jan 1, 2019 · US
PDC bits with mixed cutter blades
US-10162911-B2 · Dec 25, 2018 · US
Rotary drill bit and method for designing a rotary drill bit for directional and horizontal drilling
US-10036207-B2 · Jul 31, 2018 · US
System and method for determining torsion using an opto-analytical device
US-10012067-B2 · Jul 3, 2018 · US
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| E21B10/42 | 13 |
| E21B7/00 | 12 |
| E21B10/43 | 12 |
| E21B49/005 | 10 |
| E21B47/013 | 10 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Fixed Constructions | 29 |
| Physics | 16 |
| Operations & Transport | 3 |