WST is the world’s pioneer technology to treat MSW in a fully automatic and harmlessly manner. Realizing the concept of 3R – Reduce, Recycle, Reuse, WST technology currently has obtained eight patents in China, United States and Taiwan . Patents for other countries are in progress . WST has also been granted patents from Patents Cooperation Treaty (PCT) in June 2004. In 2003, WST technology has obtained the Endorsement Certificate from Science and Technology Assessment Authority of Jiangsu Province in China and was recognized as “ Leading Pioneer Technology in the World ” .

WST PATENT LISTINGS
Country	Title of invention	Patent No.
U.S.A.	Waste Disposal Apparatus	US6,193,178 B1
	Apparatus of piercing garbage bags and classifying garbage	US6,955,265 B2
	Apparatus and method of separating medium-sized materials from garbage for collection	US6,962,255 B2
	Apparatus and method of separating plastic films from garbage for collection	US6,994,221 B2
	Apparatus and method of separating small rubbish and organic matters from garbage for collection	US7,017,752 B2
	Apparatus and method of separating heavy materials in garbage from light ones and classifying the heavy garbage for collection	US7,017,753 B2
In 2001- 2005, obtained United States Invention Patents
China	Waste Disposal Method & Apparatus	ZL 98117498.1
	Apparatus of piercing garbage bags and garbage screening	ZL02129187.X
	Apparatus of piercing garbage bags and garbage screening	ZL03102224.3
	Apparatus and method of separating small rubbish and organic matters from garbage for collection	ZL03102220.0
	Apparatus and method of separating medium-sized materials from garbage for collection	ZL03102221.9
	Apparatus and method of separating heavy materials in garbage from light ones and classifying the heavy garbage for collection	ZL200420006679.7
	Apparatus and method of separating plastic films from garbage for collection	ZL03102222.7
	Apparatus of piercing garbage bags, collection of soft & long materials, dust & sand	ZL200410037535.2
In 2004, obtained China Invention Patents
Taiwan	Waste Disposal Method & Apparatus	139019
	Apparatus of piercing garbage bags and classifying garbage	I242474
	Apparatus and method of separating heavy materials in garbage from light ones and classifying the heavy garbage for collection	I228059
	Apparatus and method of separating small rubbish and organic matters from garbage for collection	I230100
	Apparatus and method of separating medium-sized materials from garbage for collection	I230097
	Apparatus and method of separating plastic films from garbage for collection	I230099
In 2001, obtained Taiwan Invention Patents
Singapore	Apparatus of piercing garbage bags and classifying garbage	200506949-7
	Separating small rubbish and organic matters from garbage	200506956-2
In 2007, obtained Singapore Invention Patents
* EPC, Japan, South Africa and more than 40 other countries are in progress.