Xiang Zhang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Building block
- Patent number D891531
- Issue date Jul 28, 2020
- Shanghai Putao Technology Co., Ltd.
- Xiang Zhang
- D21 - Games, toys, and sports goods
Information Patent Grant
Building block with a double male cross hole
- Patent number D885494
- Issue date May 26, 2020
- Shanghai Putao Technology Co., Ltd.
- Xiang Zhang
- D21 - Games, toys, and sports goods
Information Patent Grant
Toy building block
- Patent number D878483
- Issue date Mar 17, 2020
- Shanghai Putao Technology Co., Ltd.
- Lei Xie
- D21 - Games, toys, and sports goods
Information Patent Grant
Toy building block
- Patent number D878484
- Issue date Mar 17, 2020
- Shanghai Putao Technology Co., Ltd.
- Lei Xie
- D21 - Games, toys, and sports goods
Information Patent Grant
Tablet and stand
- Patent number D860213
- Issue date Sep 17, 2019
- Shanghai Putao Technology Co., Ltd.
- Xiaofeng Sheng
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Wearable device
- Patent number D828351
- Issue date Sep 11, 2018
- Shanghai Putao Technology Co., Ltd.
- Lei Xie
- D14 - Recording, communication, or information retrieval equipment