We live in a litigious world where many people think they have a right to an “idea” in perpetuity and to derive some income from it and will file suit against your 90 year old grandmother without a second thought.
It’s an interesting concept, patents, trademarks, and copyrights… especially in a country that threw off the chains of tyranny by a king… for it is the the king that used to grant “letters patent” which basically allowed a private entity sole control over some profit stream.
What I do know is there is a “right to repair” and if some corporations had their way, we wouldn’t have that right, nor would other companies have the right to sell parts to repair our cheaply made broken junk. But rather have us buy another piece of cheaply made junk and throw the old one away. THAT is the consumerism that threatens us all, beholden to those with a piece of paper from the king saying they have dominion over the thing we bought with our own hard earned money.
I’m not saying that we should steal music or movies or books and reprint them everywhere.
However, making parts to repair physical, mechanical things, has never, is not, and will likely never be, illegal. Could someone claim you “copied a design”, possibly. But someone could also bring suit for tripping over their own two feet on your property.
Neither are crimes - they are torts - and are not cut and dried one way or the other.
All that said, there are people lobbying for control over this sort of thing, and if they have their druthers, it would/could become criminal. Hence, the right to repair movement. Fight for your right, or lose it. Same as all the other rights we have.