How is novelty defined for international preliminary examination?

Novelty for international preliminary examination is defined in MPEP 1878.01(a)(1), which cites PCT Article 33(2):

For the purposes of the international preliminary examination, a claimed invention shall be considered novel if it is not anticipated by the prior art as defined in the Regulations.

This definition applies to both the written opinion of the International Searching Authority and the international preliminary examination report.

To learn more:

Tags: international preliminary examination, novelty, PCT, prior art