Written by Mark Terry             In an homage to John Welch’s well-known TTAB Blog, today we ask “Would you have appealed this 35 U.S.C. § 101 rejection?             In a straightforward decision today, the Board of Patent Appeals and Interferences (BPAI) affirmed an Examiner’s 35 U.S.C. § 101 rejection of a computer program product claim based on the disclosure of a transitory medium in the specification. This blog post highlights a very common rejection for software-related claims.             Recall that “A transitory, propagating signal . . . is not a process, machine, manufacture, or composition of matter [under 35 U.S.C. § 101] and,