Huang Duan

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for improving raw tobacco
- Patent number 10,098,377
- Issue date Oct 16, 2018
- SHANGHAI JUHUA SCIENCE AND TECHNOLOGY CO., LTD.
- Huang Duan
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process and apparatus for improving raw tobacco
- Patent number 9,480,283
- Issue date Nov 1, 2016
- SHANGHAI JUHUA SCIENCE AND TECHNOLOGY CO., LTD.
- Huang Duan
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES

Patents Applicationslast 30 patents

Information Patent Application
PROCESS AND APPARATUS FOR IMPROVING RAW TOBACCO
- Publication number 20170013871
- Publication date Jan 19, 2017
- Shanghai Juhua Science and Technology Co., Ltd.
- Huang Duan
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
PROCESS AND APPARATUS FOR IMPROVING RAW TOBACCO
- Publication number 20140190500
- Publication date Jul 10, 2014
- Shanghai Juhua Science and Technology Co., Ltd.
- Huang Duan
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES