I found this: https://jovanhuttonpulitzer.org/ In this Bio I am looking for is a summary of facts. What I am reading here is 1. claims that his inventions are the basis of the implementation or application of QR code reading. 2. he has a bunch of inventions used by industry. This leaves the impression that 1 and 2 are linked this is however only an impression. 1. and 2. could well be seperate facts. What I want to read is that his QR patents and inventions are current and in use, who owns them, and royalties paid, I do not want to read that they are the basis of other current inventions that may be many times removed from his claim. Currently not sure but leaning toward grifter as a conclusion. When time permits will have to re-read this bio carefully, this 2nd read is not a priority.