What are the main elements of an International Search Report?

The main elements of an International Search Report (ISR) include:

  • Identification of the International Searching Authority (ISA) that established the report
  • Application number
  • Name of the applicant
  • International filing date
  • Classification of the subject matter
  • Fields searched
  • Citations and explanations
  • Certain observations on unity of invention
  • Name and mailing address of the ISA
  • Date of completion and mailing of the report

As stated in MPEP 1844: “The search report is established in Form PCT/ISA/210.”

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Tags: International Search Report, isr, Patent Cooperation Treaty, PCT