From 35 USC ยง 101 -
Inventions patentable:
Whoever invents or discovers any new and
useful process, machine, manufacture, or composition of matter, or any
new and useful improvement thereof, may obtain a patent therefor, subject to the
conditions and requirements of this title.
Obviously the Supreme's
have made their perspective clear that that is limited by the excpetions. So it
must be read as:
Whoever invents or discovers any new and useful process [
with the exception of abstract processes ], machine...
You are talking
about usefulness. But the first important piece of Patent Law
is:
process, machine, manufacture, or composition of
matter
Your example clearly speaks to being a machine: aerofoil (or
perhaps manufacture if you're producing in bulk - or perhaps composition of
matter if your aerofoil is produced with a new material).
But if your
invention fails to be one of:
Process - with the exception of abstract
concepts, math
machine
manufacture
composition of
matter
Then the usefulness of speed has absolutely no bearing on whether
that abstract method is patentable!
Perhaps - since you stated "patent
law has no bearing on patentability" you can explain why you believe "speed"
turns an otherwise "not patent eligible abstract concept" into "patent eligible
method".
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