Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829975 | Angle-adjustable positioning and self-closing hinge for highly sealed door | — | 2020-11-10 |
| 10604978 | Adjustable-angular positioning and self-closing hinges | — | 2020-03-31 |
| 10590622 | Drop hammer height adjusting device for high strain detection of pile foundation | Sheng Gu, Pengfei Wang, Junhua Cai | 2020-03-17 |