Chinese 4150 copy

The reason I posted is there are lot of cheap chinese chainsaws (Say that three times real fast!) on Amazon that are made by Chinese Government shell corporations that have bought up all the old patents from the nineties to mid 2'000s of Husqvarna, Stihl, Jonesered, and Echo (probably many others, too). I'm just wondering how far away we are from the Amazon supercharger kit, Lenco, Rossler or CRT Race transission, etc... I know I intend to stay far away!