Cheng Yuan — 3 Patents at Usfilter

Cheng Yuan has been granted 3 US patents while listed as an inventor at Usfilter. The first was granted in 2005 and the most recent in August 2017. Cheng Yuan ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Cheng Yuan in Xinmin, CN.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
9731978	Method for preparing basic zinc chloride	Junqiang ZHU, Wenbin Xu, Yanjie Wang, Long CHEN, Zhijia Zeng +1 more	2017-08-15
7022269	Activated carbon for odor control and method for making same	James Graham	2006-04-04
6858192	Activated carbon for odor control and method for making same	James Graham	2005-02-22

Cheng Yuan — 3 Patents

Issued Patents All Time

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