Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9354020 | Dual compression spring projectile launcher | Kin Fai Chang | 2016-05-31 |
| 9261336 | Toy projectile and method of making | Kin Fai Chang, Peter Fan, Him Fung Hau | 2016-02-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9354020 | Dual compression spring projectile launcher | Kin Fai Chang | 2016-05-31 |
| 9261336 | Toy projectile and method of making | Kin Fai Chang, Peter Fan, Him Fung Hau | 2016-02-16 |