Whether it is patent infringement litigation, patent administrative litigation or patent invalidation procedure, it is often only the first step to understand technical problems. The induction of technical points will eventually be transformed into whether it meets the comprehensive coverage, whether the technical scheme is innovative, whether the technical enlightenment is obvious, and whether the legal source/existing technology/design defense/exhaustion doctrine is established. And these are all legal issues.
In wireless communication, biomedicine, optics and other fields. People with relevant knowledge background do have inherent advantages in patent legal services.