Hans Yin

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Shanghai, CN

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Patents Applicationslast 30 patents

Information Patent Application
Filtering Face-Piece Respirator And Method Of Forming Same
- Publication number 20180021608
- Publication date Jan 25, 2018
- 3M Innovative Properties Company
- Xiaoping Zhou
- A41 - WEARING APPAREL
Information Patent Application
Flat-Fold Respirator and Method of Making Same
- Publication number 20170311660
- Publication date Nov 2, 2017
- 3M Innovative Properties Company
- Jia Liang CHEN
- A41 - WEARING APPAREL
Information Patent Application
Flat-Fold Respirator And Method Of Making Same
- Publication number 20170303608
- Publication date Oct 26, 2017
- 3M Innovative Properties Company
- Jian Liang Chen
- A41 - WEARING APPAREL