Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9360594 | High water content silicone hydrogel contact lenses | Yuwen Liu, Charlie Chen, Ye Hong, Li Yao, Arthur Back | 2016-06-07 |
| 9296159 | Silicone hydrogel contact lenses | Ying Zheng, Yuan Xu, Junhao Ge, Yuan Sun, Yuwen Liu +5 more | 2016-03-29 |
| 9217813 | Silicone hydrogel contact lenses | Yuwen Liu, Junhao Ge, Charlie Chen, Yuan Xu, Li Yao +1 more | 2015-12-22 |
| 9057822 | Silicone hydrogel contact lenses | Yuwen Liu, Ye Hong, Junhao Ge, Yuan Xu, Charlie Chen +2 more | 2015-06-16 |
| 8865929 | Reactive dyes for contact lenses | Yuan Xu, Charlie Chen, Shane Mao, Hong Xue, Xining Zhang | 2014-10-21 |
| 8865789 | Silicone hydrogel contact lenses | Li Yao, Ye Hong, Yuwen Liu, Charlie Chen, Arthur Back | 2014-10-21 |
| 8820928 | Silicone hydrogel contact lenses | Arthur Back, David Robert Morsley, Richard C. Rogers, Sarah Almond, Charlie Chen +2 more | 2014-09-02 |
| 8672475 | Silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses | Yuwen Liu, Yuan Ji, David Robert Morsley, Arthur Back | 2014-03-18 |
| 8658747 | Wettable silicone hydrogel contact lenses | Yuwen Liu, Charlie Chen, Junhao Ge, Yuan Xu, Li Yao +2 more | 2014-02-25 |
| 8658748 | Silicone hydrogel contact lenses having acceptable levels of energy loss | Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong +3 more | 2014-02-25 |
| 8513325 | Silicone hydrogel contact lenses and related compositions and methods | Yuwen Liu, Charlie Chen, Ye Hong, Li Yao, Arthur Back | 2013-08-20 |
| 8487058 | Wettable silicone hydrogel contact lenses | Yuwen Liu, Charlie Chen, Junhao Ge, Yuan Xu, Li Yao +2 more | 2013-07-16 |
| 8481662 | Silicone hydrogel contact lenses having acceptable levels of energy loss | Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong +3 more | 2013-07-09 |
| 8445614 | Dimensionally stable silicone hydrogel contact lenses | Ying Zheng, Yuan Xu, Li Yao, Arthur Back, Ye Hong +1 more | 2013-05-21 |
| 7799248 | Demolding aids for silicone hydrogels and related methods | — | 2010-09-21 |
| 7071336 | Process for manufacturing opioid analgesics | Zhaiwei Lin, Christopher Arne Kaldahl, Kazimierz G. Antczak, Vijai Kumar | 2006-07-04 |
| 6972332 | Process for the production of opiates | — | 2005-12-06 |
| 6949645 | Process for the production of opiates | — | 2005-09-27 |
| 6890075 | Contact lens with PVA cover layer | Richard Charles Turek, Donald E. Keeley | 2005-05-10 |
| 6864370 | Process for manufacturing oxycodone | Zhaiwei Lin, Christopher Arne Kaldahl, Kazimierz G. Antczak, Vijai Kumar | 2005-03-08 |
| 6790959 | Process for manufacturing thebaine | Zhaiwei Lin, Christopher Arne Kaldahl, Kazimierz G. Antczak, Vijai Kumar | 2004-09-14 |