Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10184589 | Riser assembly and method | Yanqiu Zhang, Zhimin Tan, Yucheng Hou | 2019-01-22 |
| 9797526 | Riser assembly and method of installing a riser assembly | Yanqiu Zhang, Zhimin Tan, Yucheng Hou, Linfa Zhu | 2017-10-24 |
| 9033614 | Pipe components and methods of manufacture | Zhimin Tan, Yucheng Hou, Yanqiu Zhang | 2015-05-19 |