Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12120828 | Reel mechanism and winding device for flexible copper clad laminate | Rui Pan, Hongyuan Wang, Yilan Zhang | 2024-10-15 |
| 11950048 | Sound absorption material, method of making the same and speaker box filled with the same | Zhongyang Wang, Jie Zhang | 2024-04-02 |
| 11863932 | Sound-absorbing material and speaker using same | — | 2024-01-02 |
| 11837210 | Porous composite sound-absorbing material, method for preparing the same | Yuanwei Su, Changliang Wang | 2023-12-05 |
| 11570544 | Sound-absorbing material, preparation method thereof and speaker using same | — | 2023-01-31 |
| 11488570 | Sound adsorbing material and speaker box | Hongshu Feng, Kun Tang, Jiqiang Dai | 2022-11-01 |
| 11140475 | Sound absorbing material, method for process same and speaker using same | Kun Tang, Hongshu Feng, Jiqiang Dai | 2021-10-05 |
| 11109149 | Sound absorbing material and speaker box using same | Hongshu Feng, Kun Tang, Guochuang Huang | 2021-08-31 |
| 11014820 | Molecular sieve, preparation thereof and acoustic absorption material and speaker containing the same | Kun Tang, Hongshu Feng, Guochuang Huang | 2021-05-25 |
| 10939195 | Sound absorbing material and speaker box using same | Jiqiang Dai, Hongshu Feng, Guochuang Huang, Kun Tang | 2021-03-02 |
| 10506333 | Acoustic device | — | 2019-12-10 |