問題詳情
19 In the patent practice for chemical inventions, the structural similarity of chemical compounds between the invention and theprior art is usually considered ___________ for the determination of non-obviousness? Choose one phrase that best completes the above sentence.
(A) equitable estoppel
(B) prima facie evidence
(C) an unexpected advantageous property
(D) hindsight evident
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)