In Shenzhen especially, you have to out-compete the others on implementation of ideas instead of rest on your laurels (err, copyrights and patents). Wired has a great documentary of its history and culture here with examples:
https://www.youtube.com/watch?v=SGJ5cZnoodY
One I like that's about improvement more than stealing is the iPhone copy. That company got the copy out about a year before the iPhone hit China. Apple refused to let customers swap their batteries and SIM cards easily. Their I.P. protections let them pull bullshit like that. The Chinese knockoff did let you swap those. The chargers come to mind, too. If your interface is proprietary, a company will likely spring up offering a modified product or cheaper adapter that lets people keep their existing one.