How does the written opinion of the International Searching Authority relate to inventive step assessment?
The written opinion of the International Searching Authority (ISA) follows the same principles for assessing inventive step as the international preliminary examination. MPEP 1878.01(a)(2) states: “The above provisions apply mutatis mutandis to the written opinion of the International Searching Authority. See PCT Rule 43bis.1(b).” This means that the ISA uses the same criteria and approach…
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