Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10855557 | Method and device for upgrading virtual switch | Jieyue Ma, Zheng Liu | 2020-12-01 |
| 7252697 | Methods for making controlled-release ammonium phosphate fertilizer | Zongwen Liao, Song Bo, Ping-Xiao Guan | 2007-08-07 |