Siwei Leng

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Woodbury, MN, US

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Patents Applicationslast 30 patents

Information Patent Application
ELECTRET WEBS WITH CARBOXYLIC ACID OR CARBOXYLATE SALT CHARGE-ENHAN...
- Publication number 20230311038
- Publication date Oct 5, 2023
- 3M Innovative Properties Company
- Fuming Li
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
ELECTRET WEBS WITH BENZOATE SALT CHARGE-ENHANCING ADDITIVES
- Publication number 20230285884
- Publication date Sep 14, 2023
- 3M Innovative Properties Company
- Fuming B. Li
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL