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Micro-blogging patents

In August 2009, the Twitter micro-blogging service was accused of software patent infringement by TechRadium.

In the USA, no tweeting emergencies

The police in Australia can use Twitter for emergencies,[1] and government ministers in the UK are encouraged to use it for crises[2] but if TechRadium's patents are upheld, emergency procedures in the USA will have to begin with a request for permission to use these patents:

US 7,130,389 
“digital notification and response system”
US 7,496,183 
“method for providing digital notification”
US 7,519,165 
“method for providing digital notification and receiving responses”

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