'Practicing' doesn't mean manufacturing physical objects. ARM spends money producing things its customers value: processor designs at various levels, and softwa

'Practicing' doesn't mean manufacturing physical objects. ARM spends money producing things its customers value: processor designs at various levels, and software. Given that the Acorn RISC Machine came out 28 years ago, I'm pretty sure someone could build a patent-unencumbered processor for that instruction set if they really wanted to go it alone.