Apple has bought 18 patents from a Canadian firm called Maya-Systems, according to a press release from the latter party. The patents are said to relate to Mayas's "axis-based user interface technology." The company doesn't go into further detail in its release, but in some of its promotional content, Maya illustrates a file sorting system that can reorganize according to time, category, or a common theme -- such as a work project -- and sync with cloud servers and other users.