In the US, a patent requires enablement (ability to make it). That can be squishy, of course, as it doesn't require a working prototype. https://www.upcounsel.

In the US, a patent requires enablement (ability to make it). That can be squishy, of course, as it doesn't require a working prototype. https://www.upcounsel.com/difference-between-patentable-and-non-patentable https://www.upcounsel.com/difference-between-patentable-and-...