Birefringent multi-peak optical reference element and birefringent sensor system
US-2016209295-A1 · Jul 21, 2016 · US
Weatherford Technology Holdings Llc holds 163 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 163 |
| Recent patents | 0 |
| First publication | Jan 15, 2015 |
| Latest publication | Jul 21, 2016 |
Year-over-year patent counts for this assignee.
Latest publications where this party is an assignee.
US-2016209295-A1 · Jul 21, 2016 · US
US-2016209584-A1 · Jul 21, 2016 · US
US-2016208564-A1 · Jul 21, 2016 · US
US-9394762-B2 · Jul 19, 2016 · US
US-9394773-B2 · Jul 19, 2016 · US
Representative or frequently cited publications from precomputed assignee stats.
US-2016209295-A1 · Jul 21, 2016 · US
US-2016209584-A1 · Jul 21, 2016 · US
US-2016208564-A1 · Jul 21, 2016 · US
US-9394762-B2 · Jul 19, 2016 · US
US-9394773-B2 · Jul 19, 2016 · US
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| E21B21/08 | 19 |
| E21B33/085 | 15 |
| E21B34/10 | 14 |
| E21B34/14 | 13 |
| E21B43/103 | 11 |
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Fixed Constructions | 148 |
| Physics | 31 |
| Operations & Transport | 16 |
| Cross-Sectional Technologies | 14 |
| Mechanical Engineering | 11 |
| Chemistry & Metallurgy | 8 |
| Human Necessities | 1 |
| Electricity | 1 |
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