Assignee
CHEN CHENG-KUN
4 granted patents·1 pending application·53 citations·filing 2003–2013
Top patents by PatentIndex Score
5 records- 0178US7380480B1Safety needle device for tattooing body and eyebrowsCHEN CHENG-KUN·Filed 2007·Granted Jun 3, 2008·37 cites·8 claims
- 0251US7335211B2Transmission system of eyebrow-beautifying deviceCHEN CHENG-KUN·Filed 2003·Granted Feb 26, 2008·16 cites·6 claims
- 0342US7665649B2Device for assembling groups of eyebrow beautifying needles and method thereforCHEN CHENG-KUN·Filed 2005·Granted Feb 23, 2010·0 cites·7 claims
- 0441US8714055B2One-way ratchet wheel elementCHEN CHENG-KUN·Filed 2011·Granted May 6, 2014·0 cites·7 claims
- 0541US2014318325A1Structure of a ratchet wrenchCHEN CHENG-KUN·Filed 2013·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when CHEN CHENG-KUN files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →