This article has a lot of information about the Pixel Qi patents in the last section: https://goodereader.com/blog/electronic-readers/the-rise-and-fall-of-pixel

This article has a lot of information about the Pixel Qi patents in the last section: https://goodereader.com/blog/electronic-readers/the-rise-and-fall-of-pixel-qi-how-it-shaped-the-e-reader-revolution https://goodereader.com/blog/electronic-readers/the-rise-and... Money Quote: "The Pixel QI license was picked up by John Gilmore, activist, philanthropist, and founder of the Electronic Frontier Foundation. He has released the patents under the Defensive Patent License."