Assignee
LI DAYONG
JP9 patents
Top patents by PatentIndex Score
US8169718B2May 1, 2012
Wide-angle zoom lens
LI DAYONG2 citations62
US8810918B2Aug 19, 2014
Large-aperture zoom lens
LI DAYONG2 citations61
US8531767B2Sep 10, 2013
Zoom lens
LI DAYONG3 citations61
US8498059B2Jul 30, 2013
Variable power zoom lens
LI DAYONG2 citations61
US8199414B2Jun 12, 2012
Variable power zoom lens
LI DAYONG2 citations61
US9229204B2Jan 5, 2016
Zoom lens
LI DAYONG1 citations51
US8531777B2Sep 10, 2013
Zoom lens
LI DAYONG0 citations51
US8159757B2Apr 17, 2012
Zoom lens
LI DAYONG1 citations51
US8305695B2Nov 6, 2012
High magnification compact zoom lens
LI DAYONG0 citations46