STEPHEN CHANG

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Shanghai City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Anti-slip floortile
- Patent number 11,549,271
- Issue date Jan 10, 2023
- SHANGHAI JINKA FLOORING TECHNOLOGY CO., LTD.
- Hsiung-Tieh Yu
- E04 - BUILDING
Information Patent Grant
Herringbone surface decorative material and manufacturing method th...
- Patent number 10,421,314
- Issue date Sep 24, 2019
- SHANGHAI JINKA FLOORING TECHNOLOGY CO., LTD.
- Hsiung-Tieh Yu
- B44 - DECORATIVE ARTS

Patents Applicationslast 30 patents

Information Patent Application
ANTI-SLIP FLOORTILE
- Publication number 20200208414
- Publication date Jul 2, 2020
- Shanghai Jinka Flooring Technology Co., LTD.
- HSIUNG-TIEH YU
- E04 - BUILDING
Information Patent Application
HERRINGBONE SURFACE DECORATIVE MATERIAL AND MANUFACTURING METHOD TH...
- Publication number 20180029407
- Publication date Feb 1, 2018
- Shanghai Jinka Flooring Technology Co., LTD.
- HSIUNG-TIEH YU
- B44 - DECORATIVE ARTS