So the companies that make these things, in order to exploit the legal regime for profit, work around it. Such as Louis Vuitton or Nike shoes using trademarks as part of their styling. The fashion isn't copyrightable, but if you were to copy it you would violate their trademarks.
These laws are very arbitrary. Much more than the marketing for them suggests.
For example:
> Patents apply to inventions. Think: methods of doing something to achieve a particular application.
Patents, in the most literal sense, are just algorithms.
They are a series of rules that must be followed to achieve certain "inventions" or solve problems in a particular way.
People read patent's summary describing the invention and think that is the patent. It is not. The actual "meat" of the patent is the series of steps needed to achieve that invention.
The idea that software can both be patentable AND copyrightable just goes to show just how far off the rails the whole "IP" stuff is.