Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11375823 | Pump and valve combination for bladder adjustment | Chih-Fu Chang | 2022-07-05 |
| 11221005 | Pneumatic pump | Chih-Fu Chang | 2022-01-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11375823 | Pump and valve combination for bladder adjustment | Chih-Fu Chang | 2022-07-05 |
| 11221005 | Pneumatic pump | Chih-Fu Chang | 2022-01-11 |