If you truly come up with something unique. Apply for patents and copyrights. Expect to spend 10's of thousands of dollars for paperwork, lawyers and the defense of your patents and copyrights.
Les, being a dealer and not a maker I can understand your pragmatic approach to the issue. However, I am sure that you have put allot of time and energy into the knives you have designed. How would you feel if a maker started putting out Vanguard clones?
You can trace back designs as far as you would like but the fact remains that they are associated with certain makers. When you think of a flipper do you think of Pardue? Of course not, Onion is the maker that comes to mind. I do not see Simmonich's little whoop as your run of the mill thumb ramp, it has a style that is all its own and is special to Rob's knives. There are thousands of ways to make a thumb ramp, the only REAL reason someone would choose to use that exact style would be to copy Rob's. The same is true of Trace's slanted guard. There are countless examples of daggers throughout history that are dead ringers for the SF style. But it is still known as a SF.
It is clear that all but one of us here can tell the difference between something similar and an exact rip-off.
As to the whole patent thing. Give me a break. You can not patent style. Trademark maybe, but not patent. Anyhow it seems that you have missed the point of the thread. The point is about makers (not offshore factories) copying other makers "style" features. This is a clear attempt of one maker trying to jump on the shirttails of another makers success.
There is also a difference between copying and inspiration. I will be the first to admit that I am influenced by other makers designs. If I see something that I think looks nice I will see if I can somehow merge it with my own style. If in the finished product it still looks similar to the first makers version I give all the credit to that maker for coming up with the idea. This is true even if he was not the first to do said feature. It was his knife that started me thinking, so he gets the credit. This is true with my cord covered neck chains (I think it was Snody who was doing them first IIRC) and with my newer textured G10 screw down handles (totally Rinaldi). And if it looks totally different I will still give that maker credit for the "idea".
It is sad that in a community that is supposed to be "so close knit" that there is so much infighting. It is sickening how many lawsuits are always flying around. Makers suing makers, companies suing makers, makers suing companies and companies suing other companies. It is clear that for some this is only about money. And if they have to lie cheat and steal to make that money, they will do it. If this were any other field of business folks would be going to jail for stuff like insider trading or market price fixing. It really separates those who love knives and those who just love the money they can make off knives.
Now the issue of two makers coming to the same end without any contact with the others knives, that is a totally separate story. Allot of folks say how my handles are inspired by Hossom's. Are they? Well, I don't think so. At the most it would be purely subconscious. Are they similar, sure. But the evolution of one has nothing to due with the other. If two makers come up with the same idea at the same time purely by chance? Well, great minds think alike. Neither one is at fault in that case. But when one maker releases a new style and another maker releases the exact same style two months later, that smells mighty fishy to me.