Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12030848 | Solid-solid separation process for long chain dicarboxylic acids | Yufeng Yang, Xiucai Liu | 2024-07-09 |
| 12017182 | Method and system for refining long chain dicarboxylic acid | Chen Yang, Yufeng Yang, Kai Wang, Xiucai Liu | 2024-06-25 |
| 11427525 | Solid-solid separation process for long chain dicarboxylic acids | Yufeng Yang, Xiucai Liu | 2022-08-30 |
| 11319561 | Method for producing a long chain dicarboxylic acid by fermentation, fermentation broth, treated fermentation broth and wastewater | Min Xu, Chen Yang, Naiqiang Li, Xiucai Liu | 2022-05-03 |
| 11155512 | Method and system for refining long chain dicarboxylic acid | Chen Yang, Yufeng Yang, Kai Wang, Xiucai Liu | 2021-10-26 |
| 11008279 | Method for purifying 1,5-pentanediamine and the 1,5-pentanediamine prepared thereby | Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu | 2021-05-18 |
| 10807937 | Solid-solid separation process for long chain dicarboxylic acids | Yufeng Yang, Xiucai Liu | 2020-10-20 |
| 10759737 | Method for extracting 1,5-pentanediamine from solution system containing 1,5-pentanediamine salt | Xiucai Liu, Chen Yang | 2020-09-01 |
| 10538481 | Method for purifying 1,5-pentanediamine and 1,5-pentanediamine | Charlie Liu, Shanshi Guo, Benliang Hou, Xiucai Liu | 2020-01-21 |
| 10487176 | Nylon salt and preparation method therefor | Chen Yang, Yi Zheng, Charlie Liu, Naiqiang Li, Xiucai Liu | 2019-11-26 |
| 10464880 | Purification of cadaverine using high boiling point solvent | Xiucai Liu, Charlie Liu, Naiqiang Li, Yang Chen | 2019-11-05 |
| 9919996 | Preparation of cadaverine | Xiucai Liu, Charlie Liu, Naiqiang Li, Xiaoming Li | 2018-03-20 |
| 9914694 | Purification of cadaverine using high boiling point solvent | Xiucai Liu, Charlie Liu, Naiqiang Li, Yang Chen | 2018-03-13 |
| 9896409 | Purification of cadaverine using high boiling point solvent | Xiucai Liu, Charlie Liu, Naiqiang Li, Xiaoming Li | 2018-02-20 |
| 9650326 | Process for treating reaction solution containing long chain dicarboxylate | Xiwei Yang, Chi Liu, Yi Zheng, Naiqiang Li | 2017-05-16 |
| 9556106 | Purification of cadaverine using high boiling point solvent | Xiucai Liu, Charlie Liu, Duanfang DAI, Naiqiang Li | 2017-01-31 |
| 9546127 | Purification of cadaverine | Xiucai Liu, Charlie Liu, Duanfang DAI, Naiqiang Li | 2017-01-17 |
| 8729298 | Method for separation and purification of long-chain diacids | Huiqing Zang, Guang Lei | 2014-05-20 |