by InsideSpin » Thu May 06, 2010 12:24 pm
You have identified one of the weaknesses in the global patent business. Generally speaking, the advice you would get is to file patents in major centers such as Canada, US and perhaps centrally in Europe with EMEA -- if someone steals your patent in China, there is little you can do. I'm not the expert legally in this area, but I do believe if someone is selling a product into Canada based on your patent, you can ultimately stop them from within Canada. Having said that, I suspect the legal costs and challenges are high to pursue these issues. The best advice will come from a patent lawyer, so please do not use my reply as a source of authoritative expertize.
In terms of protecting from China, it is my understanding that there is less copying of IP in china then there used to be as the gov't realizes it is hindering the country's overall ability to operate internationally if IP trust is not in place. Be careful in any case -- if you idea is good enough that someone does want to copy it, one of your best protections is to own the desired distribution channel preventing them from getting it into North America (e.g. resellers, retail outlet agreements, whatever it may be).
It's a touchy subject, hopefully this was helpful.