Drill string inground isolator in an MWD system and associated method
US-9000940-B2 · Apr 7, 2015 · US
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Chau Albert W patents
Chau Albert W holds 1 patent in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 1 |
| Recent patents | 0 |
| First publication | Apr 7, 2015 |
| Latest publication | Apr 7, 2015 |
Filing trend
Year-over-year patent counts for this assignee.
Not enough yearly data to assess filing trend yet.
| Year | Patents |
|---|---|
| 2015 | 1 |
| Year | Patents |
|---|---|
| 2015 | 1 |
Recent patents
Latest publications where this party is an assignee.
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| E21B47/12 | 1 |
| E21B17/003 | 1 |
| G01V3/34 | 1 |
| E21B7/028 | 1 |
| E21B47/024 | 1 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Fixed Constructions | 1 |
| Physics | 1 |