BlackBerry has filed a complaint against Snap accusing the company of infringing its patented messaging technology in the Snapchat app. The complaint, which runs a hefty 71 pages, accuses Snap of infringing six patents including map improvements for mobile devices, advertising techniques, and UI improvements for mobile devices. It also cites Snap Maps and the display count of unread messages on a notification dot as “infringing activities.” The complaint was first reported by Bloomberg.

BlackBerry previously filed a lawsuit in March against Facebook, alleging that the social media platform, WhatsApp, and Instagram also infringed on BlackBerry’s messaging app patents. The Snap complaint includes two patents (‘634 and ‘713) that also…

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