Part 42 — Trial Practice Before the Patent Trial and Appeal Board

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• Subpt. A Trial Practice and Procedure §§42.1 to 42.80
• Subpt. B Inter Partes Review §§42.100 to 42.123
• Subpt. C Post-Grant Review §§42.200 to 42.224
• Subpt. D Transitional Program for Covered Business Method Patents §§42.300 to 42.304
• Subpt. E Derivation §§42.400 to 42.412