They still have to settle up after the crisis, apparently. OTOH, I’m not sure we have a patent violation in the first place. IIRC, it’s perfectly legal to replicate a patent and make what you want as long as you don’t sell whatever you make. If these valves were not being sold by the volunteers, I don’t see how anyone can make a claim regardless of the emergency state of things.
Not sure how this works internationally, but there are provisions to violate patents during a health crisis:
https://patentlyo.com/patent/2008/10/intellectual-pr-2.html
They still have to settle up after the crisis, apparently. OTOH, I’m not sure we have a patent violation in the first place. IIRC, it’s perfectly legal to replicate a patent and make what you want as long as you don’t sell whatever you make. If these valves were not being sold by the volunteers, I don’t see how anyone can make a claim regardless of the emergency state of things.