Google's snaffled another big haul of patents, aiming to bolster Android against its recent legal assaults from Apple.
It's bought 1,023 patents from IBM, covering everything from cleaning methods to file system management. They include patents relating to server architecture and databases, as well as a number of Java patents and some covering web search.
The US Patent & Trademark Office has a full list, here.
The new haul gives Google quite a collection - it had already bought over a thousand patents from IBM in July, not to mention the 17,000-odd that it'll bag when it completes its acquisition of Mototola Mobility.
Kent Walker, Google's senior vice president and general counsel, has said that the company sees aquiring its own massive patent portfolio is the best way of fighting off litigation from Apple and others.
"One of a company’s best defenses against this kind of litigation is (ironically) to have a formidable patent portfolio, as this helps maintain your freedom to develop new products and services," he said.
"Google is a relatively young company, and although we have a growing number of patents, many of our competitors have larger portfolios given their longer histories."
Neither company is revealing what Google paid for the patents.
Google recently sold a number of patents to HTC, aiming to help the handset maker fight off a lawsuit from Apple.