Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5731517 | Measuring device used in a four-parameter measuring system and in a high temperature and high pressure condition | Donglan Ma, Zonghu Lin, Zulian Qiu, Dong Wang, Dazhong CHEN +2 more | 1998-03-24 |