Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D940666 | Shielding shell | Tao Song, Kun Liu, Rongzhe Guo, Chuanqi Gong, Xiaogang Liu | 2022-01-11 |
| 9956447 | Perfluoroalkyl functionalized polyacrylamide for alcohol resistant-aqueous film-forming foam (AR-AFFF) formulation | Thomas J. Martin | 2018-05-01 |
| D715560 | Handle for toothbrushes | — | 2014-10-21 |
| D674609 | Toothbrush | — | 2013-01-22 |
| D458029 | Electromotive toothbrush | — | 2002-06-04 |
| 6171136 | Male type USB connector | Yun-Yu Liu | 2001-01-09 |
| 4408087 | Purification of bisphenol-A | — | 1983-10-04 |
| 4294993 | Purification of bisphenol-A | — | 1981-10-13 |
| 4294994 | Purification of bisphenol-A | — | 1981-10-13 |