Wenqian Tang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Room air purifier with RFID reader
- Patent number 11,168,907
- Issue date Nov 9, 2021
- 3M Innovative Properties Company
- Andrew R. Fox
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Room air purifier with RFID reader
- Patent number 10,955,150
- Issue date Mar 23, 2021
- SM Innovative Properties Company
- Andrew R. Fox
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
ROOM AIR PURIFIER WITH RFID READER
- Publication number 20210164674
- Publication date Jun 3, 2021
- 3M Innovative Properties Company
- ANDREW R. FOX
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Room Air Purifier with RFID Reader
- Publication number 20190107302
- Publication date Apr 11, 2019
- 3M Innovative Properties Company
- Deng Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE