Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10287841 | Packer for annular blowout preventer | Xuming Chen | 2019-05-14 |
| 10233715 | Packer assembly with multi-material inserts for blowout preventer | Xuming Chen | 2019-03-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10287841 | Packer for annular blowout preventer | Xuming Chen | 2019-05-14 |
| 10233715 | Packer assembly with multi-material inserts for blowout preventer | Xuming Chen | 2019-03-19 |