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Sei-Chang Chang

Overall (All Time): #1,598,559 of 4,157,543Top 40%

3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6884360	Filtration device with cross-flow function and its filtration method	—	2005-04-26
6119965	Hollow-core nozzle	—	2000-09-19
6079638	Nozzle assembly improvement	—	2000-06-27