What is an interference search in patent examination?
An interference search is a crucial step in the patent examination process conducted when an application is in condition for allowance. The Manual of Patent Examining Procedure (MPEP) 2304.01(a) states:
“When an application is in condition for allowance, an interference search must be made by using the most efficient and effective manner based on the claimed subject matter in the broadest claim (e.g., by performing a text search, or a classified search, or a combination of text search and classified search, of the ‘US-PGPUB’ database in EAST or WEST).”
The purpose of this search is to identify any potential interfering subject matter that could affect the patentability of the application.
To learn more:
Topics:
MPEP 2300 - Interference And Derivation Proceedings,
MPEP 2304.01(A) - Interference Search,
Patent Law,
Patent Procedure