Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10380880 | Methods of and devices for filtering triggered alarm signals | Richard Allen Darling, Fong-Min Chang | 2019-08-13 |
| 10368421 | Switching signal responding illumination device | Fong-Min Chang | 2019-07-30 |