CS

Chan Kei Shek

MA Mattel: 2 patents #399 of 1,179Top 35%
Overall (All Time): #2,109,279 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7976385 Game controller with sensitivity adjustment Andrew J. Riggs, Michael Hammond 2011-07-12
7758424 Game controller with interchangeable controls Andrew J. Riggs, Michael Hammond 2010-07-20