Hydraulic control apparatus and method for a downhole tool
US-12435585-B1 · Oct 7, 2025 · US
Yang Xiongwen is listed as an inventor on 28 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Yang Xiongwen |
| Total patents | 28 |
| First publication | May 23, 2019 |
| Latest publication | Oct 7, 2025 |
Publications ranked by popularity score, then publication date.
US-12435585-B1 · Oct 7, 2025 · US
US-2025047220-A1 · Feb 6, 2025 · US
US-12218610-B1 · Feb 4, 2025 · US
US-2024425736-A1 · Dec 26, 2024 · US
US-12104111-B2 · Oct 1, 2024 · US
US-12087931-B2 · Sep 10, 2024 · US
US-12011773-B2 · Jun 18, 2024 · US
US-11808090-B2 · Nov 7, 2023 · US
US-11591858-B2 · Feb 28, 2023 · US
US-2023015607-A1 · Jan 19, 2023 · US
Latest publications not already listed above.
US-11499377-B2 · Nov 15, 2022 · US
US-11365589-B2 · Jun 21, 2022 · US
US-2022162913-A1 · May 26, 2022 · US
US-2021370419-A1 · Dec 2, 2021 · US
US-2021252574-A1 · Aug 19, 2021 · US
US-2021254195-A1 · Aug 19, 2021 · US
US-2021194079-A1 · Jun 24, 2021 · US
US-10954745-B2 · Mar 23, 2021 · US
US-10907416-B2 · Feb 2, 2021 · US
US-2021002973-A1 · Jan 7, 2021 · US
US-2021002962-A1 · Jan 7, 2021 · US
US-10830020-B2 · Nov 10, 2020 · US
US-2020340303-A1 · Oct 29, 2020 · US
US-10753167-B2 · Aug 25, 2020 · US
US-2020048993-A1 · Feb 13, 2020 · US
US-2020024922-A1 · Jan 23, 2020 · US
US-10450819-B2 · Oct 22, 2019 · US
US-2019153798-A1 · May 23, 2019 · US
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Cnpc Usa Corp | 28 |
| Beijing Huamei Inc | 19 |
| China Nat Petroleum Corp | 8 |
| Beijing Huamei Inc Cnpc | 6 |
| Belling Huamel Inc CNPC | 1 |
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B10/5673 | 7 |
| E21B10/42 | 6 |
| E21B28/00 | 6 |
| E21B10/62 | 4 |
| E21B12/00 | 4 |