There was plenty of innovation before patents. The purpose of patents was never to incentivize innovation. The purpose was to incentivize disclosure, to allow the progress of society by revealing trade secrets (in exchange for which they would be protected from competitors for a time).
If you've ever tried to read a patent, you'll know this system has failed. In almost no cases can you meaningfully replicate an invention from a patent. Quite apart from which, a huge number of things under patent protection today are public knowledge anyway, or can be considered 'obvious'.
If you've ever tried to read a patent, you'll know this system has failed. In almost no cases can you meaningfully replicate an invention from a patent. Quite apart from which, a huge number of things under patent protection today are public knowledge anyway, or can be considered 'obvious'.