What are the common defects in a PCT Demand?

The most common defects in a PCT Demand are typically related to non-compliance with PCT Rules 53 and 55. These may include issues with:

• Identification of the international application
• Indication of applicant or agent
• Language requirements
• Signature requirements

As stated in MPEP 1868: “The most common defects which result in the mailing of an invitation to correct are found in PCT Rules 53 and 55.”

To learn more:

• PCT Demand
• Patent Cooperation Treaty
• International Preliminary Examination
• Patent Application Defects