Google Inc. has bought about 1,000 pending and issued patents from IBM Corp. 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 and IBM spokesmen wouldn’t comment Friday on the purchase.
The patent transfers were recorded two weeks ago and 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.