ZC

Zi-Wen Cao

Overall (All Time): #884,290 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D450209 Backrest support frame for a chair 2001-11-13
6131997 Locking device for a rotatable chair or table 2000-10-17
D429926 Backrest support frame for a chair 2000-08-29
6017091 Adjustable armrest assembly 2000-01-25
5879054 Armrest Device 1999-03-09
5876097 Adjustable armrest device 1999-03-02