MPEP Q & A 149: Four Categories of Invention Recited in 35 U.S.C. 101

Question: What are the 4 categories of invention recited in 35 U.S.C. 101? Answer: The four categories of invention recited in 35 U.S.C. 101 are: process, machine, manufacture, or composition of matter. Chapter Details: The answer to this question can…













