Wel has far has I understand patents, they can apply to anything, it
unrealistic but it is how it works.
A few years ago someone wanted to show the absurdity of the system by
patenting snowmen’s and he actually got the patents to it.
In some case you don't patent the product itself but the means of making it
or using it.
For example someone patented in texas how to connect to wifi, not the
technical aspect but how a normal users clicks on a certain window and then
insert the password etc...
This shows how absurd patents are.
see this (sorry for youtube)
https://www.youtube.com/watch?v=eatfgXTMFf0
A other aspect of patents is for the future, the problem is that since
patents and industrial secrets tends to monopolize knowledge, in the end it
only crushes the little of free market that can exist and only amplifies
monopolies.
We are losing knowledge in general instead of it expanding it.
Once I thought that patent problem could be resolved by using a special kind
of patent that would legally enforce a company to share their advancements
related to the use of the said patented object, but you can go easily around
it, plus if you don't have a lot of money you can't do anything to protect
the sharing perspectives introduced in it.