Issued Patents 2019
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10524056 | Loudspeaker magnetic circuit system having U-shaped short-circuit ring | — | 2019-12-31 |
| D866525 | Phase plug for loudspeaker | — | 2019-11-12 |
| 10405088 | Combination phase plug, and compression driver and speaker using same | — | 2019-09-03 |
| 10341781 | Double ring radiator and dual co-ax driver | Li Gang | 2019-07-02 |
| D852169 | Phase plug for loudspeaker | — | 2019-06-25 |
| 10264349 | Combined-type phase plug, and compression driver and speaker using same | — | 2019-04-16 |