They don't own the information/recipe, they own a trade mark. That's very different. You can absolutely make parmigiano, you just can't call it that. For artif

They don't own the information/recipe, they own a trade mark. That's very different. You can absolutely make parmigiano, you just can't call it that. For artifacts etc: it's about the physical items. I'm not aware of a nation outlawing e.g. discussion or reproduction of that artifact anywhere else in the world.