Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12395786 | Loudspeaker | Xin Liu, Andreas Pfeffer, Richard Josef Kralik | 2025-08-19 |
| 10805733 | Loudspeaker-purpose vibrating cone and loudspeaker | Kaifeng Sun, Na Liu, Yi-Lin Chen | 2020-10-13 |