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Patents Grantslast 30 patents

Information Patent Grant
Detection method for n-nitrosodimethylamine impurities
- Patent number 11,519,890
- Issue date Dec 6, 2022
- Zhejiang Huahai Pharmaceutical Co., Ltd.
- Tan Xiao
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
AUGMENTED REALITY DEVICE AND EXPOSURE DEVICE
- Publication number 20220179219
- Publication date Jun 9, 2022
- HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
- Li JIANG
- G02 - OPTICS
Information Patent Application
DETECTION METHOD FOR N-NITROSODIMETHYLAMINE IMPURITIES
- Publication number 20210285920
- Publication date Sep 16, 2021
- Zhejiang Huahai Pharmaceutical Co., Ltd.
- Tan XIAO
- G01 - MEASURING TESTING