How are non-written disclosures treated as prior art in international patent applications?

Non-written disclosures, such as oral disclosures, use, or exhibitions, are addressed in MPEP 1878.01(a) and PCT Rule 64.2. These disclosures are generally not considered part of the prior art if: The non-written disclosure occurred before the relevant date The date of the non-written disclosure is indicated in a written disclosure The written disclosure was made…

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How are non-written disclosures treated in international patent searches?

According to MPEP 1843.01, non-written disclosures are treated as follows in international patent searches: Non-written disclosures (e.g., oral disclosures, use, exhibitions) are not directly relevant prior art for international searches They become relevant only if substantiated by a written disclosure available to the public before the international filing date If a written disclosure referring to…

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