Home › Inventors › Chung-Jung Hsieh

Chung-Jung Hsieh — 2 Patents

Overall (All Time): #2,161,912 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7281612	Brake structure for a roll-up door	—	2007-10-16
5850865	Rolling fire door with delayed closing mechanism	—	1998-12-22