How does Achschuler evaluate the level of patent innovation?

Achschuler believes that overcoming contradictions in technological systems is one of the most important features of innovation. Achschuler believes that overcoming contradictions in the technical system is one of the most important features of innovation. Based on this idea, Achschuler put forward five grades of invention patents in TRIZ theory. 1 level is parameter optimization, the second level is to slightly improve the existing system by solving a technical contradiction, the third level is to fundamentally improve the existing system, the fourth level is to complete the innovation of the basic functions of the existing system with brand-new principles, and the fifth level is the invention and discovery of new systems caused by rare scientific principles.