If you just want to engage in the patent agency industry, you don't need to take the postgraduate entrance examination or take the law exam to continue your studies. Because patent agents, whether patent agents, assistant patent agents or patent process personnel, do not need a bachelor's degree or above (a college degree in science and engineering can apply for the patent agent qualification examination).
Of course, it is feasible to apply for graduate students majoring in communication, computer, microelectronics, materials and automatic control.