Isn’t absurd that algorithms and mathematical solutions can be patented?
Software patents are controversial because of the rate things move in software; a software discovery from 20 years ago is likely worthless by the time the patent expires. I think the window should be shorter for software (5 years? 3 years?), just enough to make back the investment but not milk it until it's dead
But as they go, this kind of real problem-solving is one of the more defensible kinds of software patents imo. Many software patents out there are things like "do X but store it in a database", which is obviously nonsense
IANAL but I believe it only reduces your damages in an infringement suit. It's considered your responsibility to check if something infringes on an existing patent. Yes, I know there are patents on absurd things like doubly linked lists, and the whole thing is a bit of a mess, seemingly created to give lawyers a job and present a barrier to people who can't afford to do patent discovery and all that.
As for it being absurd.... I don't know.
Would you prefer that companies never file patents, revealing their algorithms and mathematical solutions, so it never becomes public knowledge (and useable by everyone once the patent expires), and they just keep it indefinitely as trade secrets?
Because that's the alternative :(