Assignee
ZHENG LIYUN
US·5 granted patents·36 citations·filing 2011–2018
Top patents by PatentIndex Score
5 records- 0190US8210003B2Knitting needle and crochet hook assemblyZHENG LIYUN·Filed 2011·Granted Jul 3, 2012·24 cites·15 claims
- 0281US10443164B1Knitting needle with swivel jointZHENG LIYUN·Filed 2018·Granted Oct 15, 2019·6 cites·20 claims
- 0379US10619273B2Interchangeable knitting needles with secure connectionZHENG LIYUN·Filed 2018·Granted Apr 14, 2020·5 cites·20 claims
- 0466US9080516B2Diagnostic system and method for a variable valve lift mechanismZHENG LIYUN·Filed 2011·Granted Jul 14, 2015·1 cites·20 claims
- 0536US8720409B2Oil squirter with damping ventZHENG LIYUN·Filed 2012·Granted May 13, 2014·0 cites·20 claims
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