Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9327939 | Energy-saving electricity feedback device and method for an elevator | Shifeng Shao | 2016-05-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9327939 | Energy-saving electricity feedback device and method for an elevator | Shifeng Shao | 2016-05-03 |