How can a serious search burden be demonstrated in a restriction requirement?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-27

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

A serious search burden on the examiner can be prima facie shown through appropriate explanation of:

  • Separate classification
  • Separate status in the art
  • A different field of search

The MPEP 803 states:

“For purposes of the initial requirement, a serious search burden on the examiner may be prima facie shown by appropriate explanation of separate classification, or separate status in the art, or a different field of search as defined in MPEP § 808.02.”

These explanations provide a basis for demonstrating that searching for both inventions would require additional effort and resources, justifying the restriction requirement.

Tags: different field of search, patent examination, Restriction Requirement, search burden, separate classification, separate status