Zhanji Chen — 2 Patents at Unknown

Zhanji Chen has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 2013 and the most recent in October 2014. Zhanji Chen ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Zhanji Chen in Wenzhou, CN.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
8864105	Ball valve seats and ball valves designed with equilateral triangle section methods	Changxiang Xu, Mao Xu	2014-10-21
8439330	Stem shoulder seal with double rings and an assembly of independent dual stem seals	Changxiang Xu, Mao YANG	2013-05-14

Zhanji Chen — 2 Patents

Issued Patents All Time

Patent Widget