Digital Dan writes: "Twitter is being sued for patent infringement. Surprised? OK, probably not, but you'd think they'd at least wait for this company to actually make money before striking. According to The Hollywood Reporter: Texas-based TechRadium has filed a lawsuit in Houston district court against Twitter for patent infringement. TechRadium says they develop, sell, and service mass notification systems and allege Twitter is violating their patented IRIS product patent. Here's an abstract on patent #7130389: A digital notification and response system utilizes an administrator interface to transmit a message from an administrator to a user contact device. The system comprises a dynamic information database that includes user contact data, priority information, and response data. The administrator initiates distribution of the message based upon grouping information, priority information, and the priority order."
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