Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1067059 | Contour gauge | — | 2025-03-18 |
| D1007586 | Woodworking deep hole pencil | — | 2023-12-12 |
| D997750 | Foldable spirit level | — | 2023-09-05 |
| D957965 | Splicing and folding contour gauge | — | 2022-07-19 |
| D927333 | Contour gauge with lock | — | 2021-08-10 |
| 11002128 | Gravity acceleration measurement apparatus and extraction method in a rotating state | Wenxiu Zhang, Wenxuan Chen, Qingyun Di, Yuntao Sun, Yongyou Yang +1 more | 2021-05-11 |
| 10202841 | Near-bit tool attitude measurement while drilling apparatus and method | Wenxiu Zhang, Qingyun Di, Wenxuan Chen, Yongyou Yang, Yuntao Sun +1 more | 2019-02-12 |