Cheng Xiao-hua, president of Netac Technology alleges that it often takes a Chinese firm much longer to obtain a patent overseas than it does for its foreign counterparts. The next quote of Cheng suggests that this is the fault of the overseas patent office that is examining the Chinese patents.
"Cheng said he is expecting a better climate for Chinese companies in applying for patents overseas, and a more "equal examination period and fairer treatment"."
About which patent office his is talking remains unclear. It would be interesting to see this backed up by some statistics.
Read China Daily's Zhang Shiyi's article here.