Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8387657 | Methods and apparatus to determine a position of a valve | Yin Zhuang, Fan Jian Jun | 2013-03-05 |
| 8262057 | Flow controlled actuator apparatus for use with self-closing stop valves | Chun Lin, Yin Zhuang, Fan Jian Jun | 2012-09-11 |