What is the difference between insignificant pre-solution and post-solution activity in patent claims?

In patent law, insignificant extra-solution activity can be categorized as either pre-solution or post-solution activity. The MPEP 2106.05(g) distinguishes between these two types: Insignificant pre-solution activity: Steps or actions taken before the main part of the invention, typically involving data gathering or preparation. Insignificant post-solution activity: Steps or actions taken after the main part of…

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