Actually, that’s not the real reason patents are public. The reason is to allow everyone to freely use the patent after the expiry.
The tradeoff is supposed to be the inventor gets exclusive use for a decade in exchange for detailing exactly how the thing works for everyone else.
tad_lispy@lemm.ee 7 months ago
In the USA there are almost 650 thousands patent applications being filled (of which almost 400 thousands are getting grants) each year. So while technically what you wrote is correct, in practical terms finding an interesting patent is certainly not a trivial task for a journalist.