RC

Richard Chang

WC Welcome Co.: 4 patents #1 of 2Top 50%
Overall (2018): #37,387 of 503,207Top 8%
4
Patents 2018

Issued Patents 2018

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D823913 Sealer Ammy Chou 2018-07-24
D823914 Sealing and vacuum-pumping device 2018-07-24
9937661 Storage electric sealer 2018-04-10
D812662 Sealer 2018-03-13