Heh, actually that happened to my Dad's company. They sent a liason to China to discuss manufacturing of certain parts for hydraulic pumps, and sure enough, two years later China is all of a sudden making hydraulic pumps that are IDENTICAL to his pumps. It's pretty shitty when you spend hundreds of hours testing and designing a pump or valve, spend thousands of dollars in legal fees to have it patented, and then a Chinese knockoff comes around due to a complete abyss in the international copyright area.