Assignee
ZHENG LIYUN
US5 patents
Top patents by PatentIndex Score
US8210003B2Jul 3, 2012
Knitting needle and crochet hook assembly
ZHENG LIYUN24 citations91
US10619273B2Apr 14, 2020
Interchangeable knitting needles with secure connection
ZHENG LIYUN5 citations67
US10443164B1Oct 15, 2019
Knitting needle with swivel joint
ZHENG LIYUN6 citations67
US9080516B2Jul 14, 2015
Diagnostic system and method for a variable valve lift mechanism
ZHENG LIYUN1 citations50
US8720409B2May 13, 2014
Oil squirter with damping vent
ZHENG LIYUN0 citations32