Frac plug device for high expansion at the setting position
US-12209481-B1 · Jan 28, 2025 · US
Patsy Matthew is listed as an inventor on 9 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Patsy Matthew |
| Total patents | 9 |
| First publication | Mar 29, 2018 |
| Latest publication | Jan 28, 2025 |
Publications ranked by popularity score, then publication date.
US-12209481-B1 · Jan 28, 2025 · US
US-12139994-B2 · Nov 12, 2024 · US
US-2024287867-A1 · Aug 29, 2024 · US
US-2024287869-A1 · Aug 29, 2024 · US
US-11603734-B2 · Mar 14, 2023 · US
US-11021928-B2 · Jun 1, 2021 · US
US-2020115990-A1 · Apr 16, 2020 · US
US-2018334879-A1 · Nov 22, 2018 · US
US-2018087344-A1 · Mar 29, 2018 · US
Latest publications not already listed above.
No data yet.
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Cnpc Usa Corp | 9 |
| Beijing Huamei Inc | 4 |
| China Nat Petroleum Corp | 4 |
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B33/128 | 7 |
| E21B33/1293 | 5 |
| E21B33/1208 | 4 |
| E21B33/1291 | 3 |
| E21B33/129 | 3 |