BlackBerry sues Twitter for allegedly infringing six messaging patents; BlackBerry sued Facebook and Snap in 2018, also alleging messaging patent infringement (Jonathan Stempel/Reuters)

Jonathan Stempel / Reuters:
BlackBerry sues Twitter for allegedly infringing six messaging patents; BlackBerry sued Facebook and Snap in 2018, also alleging messaging patent infringement  —  (Reuters) - BlackBerry Ltd on Wednesday filed a patent infringement lawsuit accusing Twitter Inc of illegally using technology …

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