Twitter enters into a patent agreement with IBM

This Friday, Twitter acquired more than 900 IBM patents, and also entered into a cross-licensing agreement that will help protect the microblogging service from patent trolls.

Such a Twitter move is justified by IBM's autumn attacks, which blamed Twitter for deliberately violating at least three patents for which IBM owns the rights.

Ben Lee, director of Twitter’s legal department, states: “Purchasing patents and entering into a cross-licensing agreement will allow us to be confident in our own actions, as well as the actions of our users.”
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This is a very important step for Twitter, as compared to other IT companies (Facebook, Google, etc.), Twitter has only a small number of patents valid in the United States. So, from now on, it becomes an equivalent participant in patent wars.

The full list of patents purchased by Twitter has not been disclosed. But it includes patents US 6,957,224, 7,072,849, and 7,099,862, for which IBM previously punished it.

The terms of the cross-license agreement were not disclosed.

A source