What are examples of predictable and unpredictable arts in patent law?

What are examples of predictable and unpredictable arts in patent law? In patent law, the predictability of an art affects the level of disclosure required for enablement. MPEP 2164.03 provides examples: Predictable arts typically include: Mechanical devices Electrical devices Unpredictable arts often include: Chemical arts Biotechnology The MPEP states: “In cases involving unpredictable factors, such…

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