Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8459096 | Radon monitoring system for earthquake prediction | Lindgren Lin Chyi, Tsanyao Frank Yang, Cheng Chen, Kuo-Wei Wu | 2013-06-11 |
| 5438324 | Gas removal apparatus | Lindgren Lin Chyi | 1995-08-01 |
| 4863593 | Battery powered vacuum unit | — | 1989-09-05 |