RC

Richard Chang

WC Welcome Co.: 22 patents #1 of 5Top 20%
KM Kingsand Machinery: 6 patents #2 of 2Top 100%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #76,168 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 26–41 of 41 patents

Patent #TitleCo-InventorsDate
7034252 Hand-held electric heat sealer Ammy Chou 2006-04-25
6998577 Table-top electric heat sealer Shu-Hui Chou 2006-02-14
6936790 Electric heat sealer with safety device Shu-Hui Chou 2005-08-30
6919537 Electric heat sealer 2005-07-19
D498383 Timer tea maker Mario B. Accumanno, Michael Crowley 2004-11-16
6805040 Tea maker Mario B. Accumanno, Michael Crowley 2004-10-19
6802246 Timer tea maker Mario B. Accumanno, Michael Crowley 2004-10-12
6770849 Table-top electric heat sealer Shu-Hui Chou 2004-08-03
6630647 Hand-held electric heat sealer Ammy Chou 2003-10-07
6627853 Electric heat sealer with safety device Shu-Hui Chou 2003-09-30
6573477 Safety electric sealer having a safety gate 2003-06-03
6335515 Electric heat sealer with offset sealer portion Shu-Hui Chou 2002-01-01
6326594 Hand-held electric sealer with safety means Ammy Chou 2001-12-04
6232579 Electric heat sealer with safety device Shu-Hui Chou 2001-05-15
6065765 Method of molding and assembling a bicycle frame 2000-05-23
6064038 Hand-held electric sealer with detachable heat resistant cover sheet Ammy Chou, Mario B. Accumanno 2000-05-16