Facebook got some good news today on the patent-litigation front, not related to its squabble with Yahoo, but involving a patent suit originally filed in November 2008 by Leader Technologies.

Bloomberg reported that the U.S. Court of Appeals for the Federal Circuit in Washington, D.C., upheld a ruling by the U.S. District Court, District of Delaware in July 2010 that Leader took too long to seek protection for its invention, making its patent invalid.

The court found that the patent application by Leader was filed in December 2003, while the company was demonstrating its Leader2Leader throughout 2001, and inventors are required to seek patent protection within 12 months of offering the product in question for sale, Bloomberg reported.

Leader originally filed suit over a patent that covers “a method and system for the management and storage of electronic information,” and its patent document read, “This invention relates to new structures and methods for creating relationships between users, applications, files, and folders.”

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