# How Smartphones Manage Multiple Notifications on a Locked Screen > A patent describing how a locked smartphone displays multiple notifications from different apps and allows users to interact with them individually without unlocking the phone. - **Patent:** US 11921980 - **Original title:** Systems and methods for displaying notifications received from multiple applications - **Owner:** Apple Inc - **Granted:** 2024 - **Status:** Active - **Times cited:** 1 - **Field:** consumer_electronics, software ## What it does This patent details a system for managing how a locked smartphone shows alerts from various apps. When two or more notifications arrive, the device displays them concurrently on the lock screen. If a user taps or interacts with one specific notification, the system reveals hidden controls—like a snooze button or a slider—for that specific alert while keeping the other notification visible. This allows the user to perform tasks, such as stopping an alarm or managing a message, directly from the lock screen. ## What it does NOT cover - Does not cover notifications that require the device to be fully unlocked to interact with them. - Does not cover systems that only show one notification at a time on the lock screen. - Does not cover notifications that lack interactive controls or buttons. - Does not cover voice-command-based notification management. ## The clever bit The system maintains the 'locked' state while providing granular, app-specific interactivity, effectively creating a secure, temporary workspace for individual notifications without exposing the rest of the device's data. ## Real-world examples 1. iOS Lock Screen notification stacks 2. Interactive notification banners on modern smartphones 3. Snooze and reply buttons on lock screen alerts ## Why it matters As smartphones have become our primary communication hubs, the volume of notifications has exploded. This patent reflects the industry shift toward making lock screens functional dashboards rather than just static security gates, allowing users to triage information quickly without the friction of authentication. ## Frequently asked questions ### What does How Smartphones Manage Multiple Notifications on a Locked Screen cover? A patent describing how a locked smartphone displays multiple notifications from different apps and allows users to interact with them individually without unlocking the phone. ### Who owns patent US 11921980? Apple Inc owns this patent, granted in 2024. ### When does this patent expire? This patent is expected to expire on March 5, 2044, when the invention enters the public domain. ### What is patent US 11921980 cited by? This patent has been cited by 1 later patents that build on its ideas. ### What problem does this patent solve? As smartphones have become our primary communication hubs, the volume of notifications has exploded. This patent reflects the industry shift toward making lock screens functional dashboards rather than just static security gates, allowing users to triage information quickly without the friction of authentication. ### What does this patent NOT cover? Does not cover notifications that require the device to be fully unlocked to interact with them. **Full plain-English explainer:** https://patentbrief.org/patent/us/11921980/vision-pro-optic-id **Original patent:** https://patents.google.com/patent/US11921980 --- _Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._ ## Related patents Semantically similar inventions in the PatentBrief corpus: - [How to Interact with Background Apps While Using Another App](https://patentbrief.org/patent/us/10521248/swiftui) — A method for controlling background applications directly through a visual window inside the app you are currently using. - [How Mobile Devices Switch Between Open Apps Using Gestures](https://patentbrief.org/patent/us/8291344/ios-autocorrect-keyboard) — Apple's patent describes a way to switch between open apps on a touchscreen by showing a bar of app previews and selecting one with a tap. - [How Smartphones Organize Apps into Folders](https://patentbrief.org/patent/us/8423911/ios-control-center) — Apple's 2010 patent describing the logic for creating and interacting with app folders on a touchscreen device, specifically distinguishing between 'normal' use and 'editing' modes. - [How Apps Pass Touch Gestures Between Each Other](https://patentbrief.org/patent/us/9483121/force-touch-3d-touch) — A method for a device to decide which app should handle a user's touch gesture when multiple apps are running at the same time. - [How Pull-to-Refresh Works on Your Smartphone](https://patentbrief.org/patent/us/8448084/pull-to-refresh-gesture) — This patent describes the 'pull-to-refresh' gesture that lets users update a list of content, like a social media feed, by dragging down until a trigger appears and then releasing.