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Application of a high efficiency dissolved oxygen jet aeration patent in September 2002, patent number: ZL201220506049.0

November 5, 2012 Application of split water outlet for farmland irrigation patent, patent number: 201220575446.3

December 5, 2012 Application to the warm tube safety inflatable valve patent, patent number: 01022055415.8

October 23, 2013 to apply for inspection of the well of the combination of mold patent, patent number: ZL201320655204.X

October 29, 2013 to apply for a large-diameter pipe production of plastic co-extruded die patent, patent number: ZL201320668264.5

January 26, 2014 Application of plastic modular septic tank patent, patent number: ZL201420057377.6

April 2014 patent application for large-diameter pipe co-extruded mold patent, patent number: 2014200573776.6

April 2014 Application for the inspection of the mold of the mold, patent number: 201320655204.x

July 2014 Application for plastic combination of water treatment equipment patent, patent number: 201420057377.6

June 5, 2015 to apply for PVC pipe combined inspection wells patent, patent number: ZL201520388981.1

December 3, 2015 Application for a large-caliber PVC solid wall water pipe for the mold patent, patent number: ZL201520982597.4

December 3, 2015 Application for a large diameter PVC hollow pipe mold patent, patent number: ZL201520982596.X

December 3, 2015 Application for a large diameter PVC solid wall water pipe for the mold patent, patent number: 201510868201.8

December 3, 2015 Application for a large-caliber PVC hollow pipe die patent, patent number: 20150868203.7

June 17, 2016 Application for ecological integration of sewage treatment equipment patent, patent number: 201620631608.9

June 17, 2016 Application for ecological integration of sewage treatment equipment patent, patent number: 201630267714.9

June 20, 2016 Application of ecological integration of three grid septic tank patent, patent number: 201620631607.4

June 20, 2016 Application of ecological integration of three grid septic tank patent, patent number: 201630267715.3