patents & the public institutions
patents are not a natural right. They are a limited right to exclusivity granted by law to allow the patent holder (usually the investor/discoverer) to benefit from their innovation. The reason they exist as a legal reality is to incentivise the sort of research that leads to new discoveries.
You could argue that public bodies do not need to patent discoveries, as they are publicly funded, however the problem with this is that then private corporations simply perform a land grab, patent the stuff themselves, and sue the hell out of anyone who tries to use the method in question. So for this reason public institutions do need to patent discoveries, even if only as a defensive measure.
When you also consider that quite a number of the big successful behemoths that bestride silicon valley started up as university funded or created companies, or were based on tech developed in collaboration with universities (and so with an element of public funding) then it gets even more complicated.
In all probability the current length of patents is probably a little too long, and it is certainly arguable that in the fast moving world of tech especially having them expire sooner would serve no commercial damage to innovative companies, and provide considerable public interest, as it would at least mitigate the patent portfolio licensing companies, if not destroy them.
But to argue that bodies that are publicly funded deserve no legislative protection shows more of a philosophical position than a well reasoned argument (and none the worse for that). If public bodies raise revenue from other sources than taxation then the tax burden can decrease (or more services can be provided). If this is through some form of commercial activity (for example research leading to the granting of patents), then provided competition is not unfair, it is simply another form of taxation, targeted at those who benefit.
Of course the same argument applies to copyright - with bells on.