There is no "fair-use", non-commercial, or even personal-use exception to patent law.

Code is speech, but the 1st amendment has recognized exceptions for IP.

A program per se though is just a detailed description of the "invention" (i.e. a better version of the patent document itself). That's the entire software patent loophole; they take pure math and say "a system where a computer does the described math."

	▲	kube-system 6 minutes ago \| parent [-]
		A software program is a "description" of a patent like an office building is a "description" of a blueprint.... they aren't. They are implementations. > That's the entire software patent loophole; they take pure math and say "a system where a computer does the described math." The "do [x] on a computer" loophole was overturned in the US. https://en.wikipedia.org/wiki/Alice_Corp._v._CLS_Bank_Intern...