Fluffeh writes: "Facebook Inc. acquired 750 patents from IBM, adding intellectual property that may help it counter allegations of patent infringement, a person with knowledge of the transaction said. Facebook, the world’s biggest social-networking service, is bolstering its legal defenses amid a standoff with rivals that have more intellectual property. Yahoo! Inc. sued Facebook earlier this month, accusing it of infringing patents covering functions critical to websites. Facebook had 22 patent suits against it last year, according to LegalMetric.com."