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Inventor profile of:

Qingfeng Ma

City:

Shenzhen

Country:

China

Published Applications:

1

Last publication date:

2019-12-05

Recent patent applications by Ma Qingfeng

Qingfeng Ma from Shenzhen, CN has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2019-12-05

US20190365050A1

Human necessities

HEEL LINER PREVENTING HEEL RUBBING AND SLIDING

InventorID:

3043173 ⎘