Does anybody who has posted in this thread actually KNOW who is copying whom ?
SanRenMu may have it's own design and engineering department that works with the other companies for whom they make knives and these designs are a result of this collaboration. Could even be that these so called "copies" are SRM designed and other knife companies request a copy with their own branding.
SRM has indeed a number of models that are sold in the west with western brand names associated to them. It's indeed not always clear where the original design was made. Well, in the case of a Böker Magnum, I am pretty sure that Böker took an sRM design and rebranded it. On the other hand, I don't know where the design for the Buck Nobleman has happened.
Even so, in all fairness, SRM has also a few knives that are obviously inspired by certain western design. The best known is of course the 710 which resembles the Sebenza somewhat (though I find that it is not a closer match than for example the Bradley Alias), but there is also the 702 (Klotzli inspired) and 613 (Mcusta money clip inspired).