How many inventions are patented‪?‬ New Things Under the Sun

Welcome to patents week! I set out to write a post about using patents to measure innovation, but it turned into four. I'm releasing podcasts of each episode, one per day, but if you're too excited to wait, you can read all four here, on New Things Under the Sun.How many inventions are patented? Less than half, more than zeroPatents (weakly) predict innovation: Correlations between patents and other proxies for innovationDo studies based on patents get different results? For the sample on New...