Alvin Au Yeuk YUEN

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Kwun Tong, KLN, HK

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Patents Grantslast 30 patents

Information Patent Grant
Handheld vacuum cleaner
- Patent number 11,419,465
- Issue date Aug 23, 2022
- Techtronic Floor Care Technology Limited
- Alvin Au Yeuk Yuen
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information Patent Grant
Handheld vacuum cleaner
- Patent number 11,363,921
- Issue date Jun 21, 2022
- Techtronic Floor Care Technology Limited
- Alvin Au Yeuk Yuen
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...

Patents Applicationslast 30 patents

Information Patent Application
HANDHELD VACUUM CLEANER
- Publication number 20190183304
- Publication date Jun 20, 2019
- TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
- Alvin Au Yeuk YUEN
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
HANDHELD VACUUM CLEANER
- Publication number 20190183300
- Publication date Jun 20, 2019
- TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
- Alvin Au Yeuk YUEN
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
HANDHELD VACUUM CLEANER
- Publication number 20190183303
- Publication date Jun 20, 2019
- TTI (MACAO COMMERCIAL OFFSHORE) LIMITED
- Alvin Au Yeuk YUEN
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...