YUNG CHENG MA

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TAIPEI, TW

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Patents Grantslast 30 patents

Information Patent Grant
Structure of umbrella
- Patent number 8,800,577
- Issue date Aug 12, 2014
- Joen-Shen Ma
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Short force arm deflection device
- Patent number 8,776,809
- Issue date Jul 15, 2014
- Joen-Shen Ma
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Leverage-based large-sized umbrella
- Patent number 8,499,775
- Issue date Aug 6, 2013
- Joen-Shen Ma
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Safety buckle of umbrella runner
- Patent number 8,424,547
- Issue date Apr 23, 2013
- Joen-Shen Ma
- A45 - HAND OR TRAVELLING ARTICLES

Patents Applicationslast 30 patents

Information Patent Application
STRUCTURE OF UMBRELLA
- Publication number 20140020725
- Publication date Jan 23, 2014
- JOEN-SHEN MA
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Application
SHORT FORCE ARM DEFLECTION DEVICE
- Publication number 20130206192
- Publication date Aug 15, 2013
- JOEN_SHEN MA
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Application
LEVERAGE-BASED LARGE-SIZED UMBRELLA
- Publication number 20130206194
- Publication date Aug 15, 2013
- JOEN-SHEN MA
- A45 - HAND OR TRAVELLING ARTICLES