Acapulco writes ""With the IPA (Innovator's Patent Agreement) employees can be assured that their patents will only be used as a shield rather than as a weapon." Said Twitter's Engineering VP.
In the blog he also said "Like many companies, we apply for patents on a bunch of these inventions. However, we also think a lot about how those patents may be used in the future; we sometimes worry that they may be used to impede the innovation of others. For that reason, we are publishing a draft of the Innovator’s Patent Agreement, which we informally call the “IPA”."
The BBC has other details on the story."
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