Qing Chang

China

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Total IP 5
Total IP Rank # 314,244
IP Activity Score 1.3/5.0    4
IP Activity Rank # 241,822
Dominant Nice Class Small items for dressmaking; art...

Patents

Trademarks

3 2
0 0
0 0
0
 
Last Patent 2022 - Device and method for high-effic...
First Patent 2019 - Apparatus and method for efficie...
Last Trademark 2025 - DCCQ
First Trademark 2017 - DORISEA

Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 G/S Belt clasps; Brooches for clothing; Charms for pet collars; Decorative backpack charms; Decorativ...
2019 Invention Device and method for high-efficiency preparation of spherical metal powder for 3d printing emplo...
Invention Apparatus and method for efficiently preparing ultrafine spherical metal powder by one-by-one dro...
Invention Apparatus and method for preparing spherical metal powder based on one-by-one atomization method ...
2017 G/S Lines for fishing; [ Artificial fishing bait; Rods for fishing; Landing nets for anglers; Floats ...