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Patent applications and USPTO patent grants for Li; Zheng Zheng.The latest application filed is for "glycol chitosan derivative having hydrophobic substituent, method for preparing same and use of same".
Patent | Date |
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Glycol Chitosan Derivative Having Hydrophobic Substituent, Method For Preparing Same And Use Of Same App 20150291705 - Huh; Kang Moo ;   et al. | 2015-10-15 |
Glycol chitosan derivative, preparation method thereof and drug delivery system comprising the same Grant 8,445,465 - Huh , et al. May 21, 2 | 2013-05-21 |
Glycol Chitosan Derivative, Preparation Method Thereof And Drug Delivery System Comprising The Same App 20120053331 - HUH; Kang Moo ;   et al. | 2012-03-01 |
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