What is the purpose of Form PCT/ISA/237?

Form PCT/ISA/237 is used for preparing the Written Opinion of the International Searching Authority. The Written Opinion provides an initial, non-binding opinion on the patentability of the claimed invention. As stated in the MPEP, Box No. V is the main purpose of the written opinion. All claims without fatal defects are treated on the merits in Box No. V as to novelty, inventive step (nonobviousness) and industrial applicability.

To learn more:

• PCT
• International Search
• Written Opinion
• Patentability