Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11297401 | Method for testing a plurality of notification appliances connected to a bus system and notification appliance for conducting the test | Urs Kaestli, Marc Wenzler, Peter Hofer, Peter Baertschi | 2022-04-05 |
| 10540885 | Fire alarm systems | Hong Xiang Liang, Jian Tan | 2020-01-21 |
| 9666039 | Visual notification device and driving method thereof | Li Guo Chen, Rui Ren, Jian Tan | 2017-05-30 |