It aims to create open standards for documents that guarantee interoperability between software suites, allowing StarOffice to open and edit a document created in WordPerfect, for instance.
Sun's patent support for OpenDocument is different from a move the company made earlier this year, in which it pledged 1,670 patents in support of any software governed by the open source Common Development and Distribution Licence.
Simon Phipps, Sun's chief open source officer, said: "Previous attempts at patent protection using the 'patent commons' approach glorify patents, forcing anyone who would benefit from the apparent protection to become a patent expert. A blanket statement like this just says: 'no need to look, you're safe.'"
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago