Companies violate patents all the time. Even big domestic ones. I've seen that up close and personal. My small US based company won a lawsuit against a large US company who stole our IP.
It happens even more when the IP is from one country and the infringer is in another. Many companies do not protect their IP internationally because it costs more and it's complex. And then there's the problem of mounting a legal action in a foreign country. Even if their legal system is reasonably fair and impartial it costs more in money and hassle.
But like I said, I bet the patents on the saws that are getting copied are probably expired. Patents get filed before a product goes into production. Once you tell people about your product in detail even if its not in production yet, it's either too late to file or there's limited time like 1 year.
So for example the most popular Chinese clone saw, the MS660 is the 1122 series. That started production in 1986 with the 064 and the 660 came in 2004. Many of the patents would have been on the original 064 because it was a new series. Those would be long expired. Any patents for new inventions that the 660 had that the 064 and 066 didn't would be expired or about to. A larger bore or stroke would be impossible to patent. It has to be a novel idea.
It happens even more when the IP is from one country and the infringer is in another. Many companies do not protect their IP internationally because it costs more and it's complex. And then there's the problem of mounting a legal action in a foreign country. Even if their legal system is reasonably fair and impartial it costs more in money and hassle.
But like I said, I bet the patents on the saws that are getting copied are probably expired. Patents get filed before a product goes into production. Once you tell people about your product in detail even if its not in production yet, it's either too late to file or there's limited time like 1 year.
So for example the most popular Chinese clone saw, the MS660 is the 1122 series. That started production in 1986 with the 064 and the 660 came in 2004. Many of the patents would have been on the original 064 because it was a new series. Those would be long expired. Any patents for new inventions that the 660 had that the 064 and 066 didn't would be expired or about to. A larger bore or stroke would be impossible to patent. It has to be a novel idea.