Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9843239 | Farm animal-operated conveyer and generator | Zhenkun Wang | 2017-12-12 |
| 9630807 | Energy saving elevator apparatus with maintaining potential energy by intellectual control variable mass | Zhenkun Wang, Xiyou Wang | 2017-04-25 |