Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10732127 | Dirtiness level determining system and surface cleaning machine | Yen-Min Chang | 2020-08-04 |
| 10704931 | Optical detecting device capable of determining shift of a multi-axis instruction outputting mechanism | Yen-Min Chang, Chia-Fu Ke | 2020-07-07 |
| 10538288 | Rotation calculating system and rotation calculating method | Yen-Min Chang, Ching-Lin Chung | 2020-01-21 |