Tustin, California
United States
3
2014-09-11
Michael J. Chen from Tustin, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Method and System to Automatically Track User's Time of Using Mobile Computing Device for Purpose of Billing Clients
#2 | 2010-09-30Cart For 3D Glasses
#3 | 2009-08-20Novel Coin Exchange system and method
906744 ⎘