Three anonymous ex parte requests challenging the validity of noteworthy patents held by two tech giants were filed with the United States Patent and Trademark Office last week. Two were filed against Apple, while a third challenged a Facebook patent. One was filed versus Apple's patent numbered 7,479,949 for touchscreen interfacing. The second against Apple was patent 7,469,381 in regards to document presentation on a touchscreen display. Facebook's patent involves a dynamic news feed about a user of a social network. The instigators of all three complaints are unknown.
