According to “9to5Mac” (http://tinyurl.com/clg8vla) –based on documents published on the Access (formerly PalmSource) — Apple has licensed patents from the portfolios of several former technology companies including some from Palm/PalmSource which were originally bought by HP.
Access appears to own patents from Palm, Bell Communications Research and Geoworks and has licensed them to Apple for 1B Yen, the article adds. Microsoft previously took out a license on these same “foundational patents.”