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LendingTree Claims H&R Block Patent Invalid

Law360 (March 11, 2008, 12:00 AM EDT) -- Online loan aggregator LendingTree LLC has filed suit against Block Financial Corp., seeking to declare a Block Financial patent covering real-time financial card offers to Web customers invalid.

LendingTree filed its declaratory judgment complaint Thursday in the U.S. District Court for the Western District of Missouri, five and a half years after Block Financial, also known as H&R Block, filed suit against the online company over another patent.

The patent in the latest suit, U.S. Patent No. 7,310,617, is a continuation of the patent at the...
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