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Patents and mathematics

From Mathematics Is A Science
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>>"Surely nobody could apply mathematics if it were necessary to pay a license fee whenever the theorem of Pythagoras is employed."

I've seen this argument why algorithms and mathematics shouldn't be patentable many times. A fact that is always overlooked is that this hypothetical patent would have expired sometime in the 5th century BC. To make this argument one would have to find more recent examples. How about anything created within the last 20 years?

In my view, the greatest things in mathematics aren't practical to be patentable and the practical ones aren't anywhere close in magnitude to the Pythagorean Theorem. So, where is the problem?

It's interesting, the unpatentability of mathematics is used to justify unpatentability of such things as algorithms, software etc. They'd say "It's just math!" How about "it's just physics"?

Without patents we'd never know what PageRank is and we'd still think this is best we can do...

  • U.S. Patent No. 6,285,999 "Method for node ranking in a linked database".

There are a few "pure math" patent applications published by the Patent and Trademark Office.