Matched inventor ages from patents, based on web scraped sources

We use information about U.S. residing inventors from patents which include name and location and search for age and date of death information from publicly available online web directories and build a scoring system to indicate the quality of information that we collect. After applying a variety of heuristics and robustness checks, we find 1,508,676 inventor ages. We also find the death dates of 206,589 inventors, though are not as confident in its accuracy.