Of course, it is important to have experience in the market, and to promote it through local science commissions, intellectual property offices, and through the Internet.
Additionally, the China Intellectual Property News (CIPN) also publishes promotional information in every issue (for an unknown fee).
You can also directly in Alibaba search you want to promote the support of the cell phone shell, where there are many companies, basically all of China has a cell phone manufacturers, come to Shenzhen, after all, here is more mature, to promote your patent to the manufacturer manager, if they think it is necessary, is going to pay money to cooperate with you or buy your patent.
Again, it's really hard to make money on patents, but once you've talked about it, the rest of your life is night and day. I design cell phone software, and I'm well aware of the fact that our company would actually welcome your patents