Assignee
CHEN AYU
CN·3 granted patents·1 citations·filing 2012–2012
Technology mixF16F3
Top patents by PatentIndex Score
3 records- 0150US9103395B2Elasticity-adjustable air pressure springCHEN AYU·Filed 2012·Granted Aug 11, 2015·1 cites·8 claims
- 0240US8985562B2Diameter-variable cylindrical air pressure springCHEN AYU·Filed 2012·Granted Mar 24, 2015·0 cites·8 claims
- 0338US9133901B2Spiral air pressure springCHEN AYU·Filed 2012·Granted Sep 15, 2015·0 cites·6 claims
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