Duanduan Li

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Zhangjiakou, CN

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Patents Applicationslast 30 patents

Information Patent Application
Safety Interlock Failure Prediction Method and Roll Production System
- Publication number 20240028926
- Publication date Jan 25, 2024
- Zhangjiakou Cigarette Factory Co., Ltd
- Wei Wang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DEVICE AND METHOD FOR REDUCING COMBUSTION CONE FALLOUT PROPENSITY A...
- Publication number 20240008521
- Publication date Jan 11, 2024
- Zhangjiakou Cigarette Factory Co., Ltd
- Zhen Wang
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Application
CUT-STEM SEPARATING AND BAFFLING APPARATUS AND PRIMARY AIR SEPARATI...
- Publication number 20230148655
- Publication date May 18, 2023
- Zhangjiakou Cigarette Factory Co., Ltd
- Zhen Wang
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES