Paul
I understand what you are saying.. I just dont agree with you
What the other extreme.. you lock your design team up in a sealed workshop and tell them to design a saw....? How do you know if yours is better or worse than the competition if you dont compare your own product. What if your design team doesn't think of putting a riving knife in there? Should you NOT apply a good idea that you come across, just because someone else thought of it. Patent laws should apply of course. If there is a current patent on that idea you can either licence it for you machine, invent a different way of achieving the same thing, or do without that feature.
I think the other option applied in East Germany, they built Traubant cars in a factory, and thats all they built. There was no need to look at other vehicles on the market (there were no others). Traubants were horrible cars, there were plenty of ideas that could have improved them if they had taken a VW or Toyota apart and applied the ideas they saw. Wouldn't even had to have broken any patent rules.
Also imagine YOU wanted to build an airplane, to sell. Would you start out in a shed like the Wright brothers? I dont think so. Best bet would be to go to University and study aero engineering. What does that consist of? Looking at / taking apart airplanes and learning how they work
The subject of patent infingement or overseas manufacturing are different subjects. But comparing your product to existing / competing products is just common sense.
Copying others and learning based on previous knowledge IS what got technology to where we are now. When caveman Zug started banging the ole rocks together way back when, you can bet his mate Gug came over to see what he was doing. Lucky he didn't say "ohhh, Zug has invented sharp stones.. I better not make one of my own and mount it on the end of my stick".
Cheers
Ian