CM

Calvin K. Ma

TA Tc Group A/S: 3 patents #6 of 14Top 45%
📍 Toronto, CA: #2,026 of 9,482 inventorsTop 25%
Overall (All Time): #1,202,390 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9288563 Microphone stand mounting brackets David Kenneth Hilderman, Damon Langlois 2016-03-15
9179208 Microphone stand mounting brackets David Kenneth Hilderman, Damon Langlois 2015-11-03
8718311 Microphone stand mounting brackets David Kenneth Hilderman, Damon Langlois 2014-05-06
6344887 Full spectrum reflective choleterics display employing circular polarizers with the same polarity but different disposition Yao-Dong Ma 2002-02-05