Google buys about 1,000 IBM patents

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NEW YORK (AP) ? Google has bought about 1,000 issued and pending patents from IBM in its quest to shore up its defenses against suits by other technology companies, according to documents filed with the U.S. Patent and Trademark Office.

Google Inc. and IBM Corp. spokesmen wouldn’t reveal how much Google paid or why IBM was selling the patents.

The patents cover a range of technologies, many of which have little to do with Google’s Internet search and advertising business. One covers ways of automatically adjusting a clock, another deals with surface treatments for electrical contacts.

Earlier this month, Google participated in an auction for a collection of 6,000 patents from Nortel, a bankrupt Canadian maker of telecommunications equipment. It was outbid by a consortium including Apple that paid $4.5 billion.