Mark Twain once said "Only one thing is impossible for God: To find any sense in any copyright law on the planet."
I was reminded of this upon reading this brief but highly illuminating article describing the delayed but then aggressively pursued commercialization of a widely taught and adopted mental health questionnaire. A newer, perhaps even superior (but free and public domain) questionnaire with a few overlapping questions has been "de-rezzed" after a copyright dispute with the vendor of the earlier questionnaire.
The right questions may help disrupt the progress of disease, but not as effectively as a well-timed exercise of copyright on questions can disrupt progress (with apologies to Mark Twain).
Hat tip: Atul Butte