In which case the inventor of the technology would be remunerated according to the consumers' choices, and not by the choices of a handful of manufacturer gatekeepers.

Perhaps at some point, shops that only use blade-stop safety saws would recoup that cost on lower employee health insurance premiums?

Licensing the technology does not mean it must be put into all models of saw! You don't have to buy the heated seats and built-in backseat entertainment center when you buy a car, either.