38 patents in this list

Updated:

Modern mobile device cases must accommodate dozens of interaction points - from volume rockers and power buttons to charging ports and camera arrays - while maintaining drop protection. Current designs struggle to balance accessibility with protection, as evidenced by common issues like blocked ports, dampened button feedback, and interference with device sensors that can reduce functionality by up to 30%.

The fundamental challenge lies in creating protective structures around buttons and ports that maintain tactile response and full accessibility while preserving the case's structural integrity and shock absorption capabilities.

This page brings together solutions from recent research—including flexible inner sleeves with precise control protrusions, modular port covers for peripheral attachment, chamfered openings for sensor compatibility, and multi-layer button mechanisms. These and other approaches demonstrate how manufacturers are achieving both protection and functionality in modern case designs.

1. Double-Sided IMD Mobile Phone Case with Recessed Camera Hole, Arched Edge, Side Buttons, and Heat Dissipation Vents

SHENZHEN RUNSUN DEV CO LTD, SHENZHEN RUNSUN DEVELOPMENT CO LTD, 2023

All-inclusive double-sided IMD mobile phone case with a camera hole, buttons, and protection for the phone camera and screen. The case has a molded shape with a recessed camera hole and boss to fit the camera lens. The camera hole has an arched edge to avoid contact with the palm when holding the phone. The buttons are on the side. The case has an outer skirt that matches the screen edge to prevent touching the palm. The back has vents for heat dissipation. The case is made of materials like TPE and TPU for grip and drop protection.

CN219678528U-patent-drawing

2. Smartphone Case with Integrated Sealing Frame and Waterproof Port Plugs

FOSHAN SHENLONGDA TECH CO LTD, FOSHAN SHENLONGDA TECHNOLOGY CO LTD, 2023

A waterproof protective case for smartphones that provides complete sealing and waterproofing without needing a separate case cover. The case has a frame that wraps around the back of the phone and extends slightly into the screen area. It has waterproof plugs for the charging port, headphone jack, and speaker holes. The frame fits snugly against the phone screen to seal out water. The case also has raised buttons and a volume key cap integrated into the frame. This allows button access while sealing out water. The case back has a lens cover with a raised edge and mounting holes for the camera and flash. This prevents scratches and prevents water vapor from entering the camera area.

CN219678525U-patent-drawing

3. Smartphone Protective Case with Raised Nylon Plate, Stepped Camera Cutout, Plug and Silent Waterproof Assemblies

LUO XIAOMING, 2023

Comprehensive protective case for smartphones that provides improved drop protection, water resistance, and shock absorption compared to conventional cases. The case has multiple components like a raised nylon plate at the back with damping, a stepped camera cutout, plug waterproof assembly, and silent waterproof assembly. This configuration provides features like camera protection, water resistance, and shock absorption. The stepped camera cutout prevents impact damage to the camera module. The plug waterproof assembly seals the charging port. The silent waterproof assembly blocks sound. The raised back nylon with damping cushions impact.

4. Mobile Device Protective Case with Modular Peripheral Attachment and Detachable Port-Covering Sidewall

MobileDemand LC, 2023

Protective case for mobile devices like tablets or smartphones that enables efficient ruggedization, peripheral attachment, and protection against drops while maintaining compatibility with modular peripherals like keyboards, barcode scanners, etc. The case has a flexible rubberized housing partially enclosed by a rigid housing. The rigid housing has a detachable sidewall that can cover and protect peripheral ports when not in use. The sidewall can be removed to attach peripherals like keyboards directly.

US20230163799A1-patent-drawing

5. Ruggedized Mobile Device Case with Peripheral Attachment and Integrated Circuit Housing

MobileDemand LC, 2023

A ruggedized protective case for mobile devices that allows easy attachment of peripheral devices like barcode scanners and payment devices. The case has a secondary housing with port protectors to shield the mobile device's connectors. A circuit housing mounts to the case and provides a rear-facing mount for peripherals. The circuit housing also has programmable buttons to control device functions. The case may include features like a rotatable terminal for wireless payment devices.

6. Modular Mobile Phone Case with Buckled Frame, Reversible Lens Protector, and Rotating Mute Toggle

LUO XIAOMING, 2022

Three-proof mobile phone case with enhanced drop, scratch and water resistance compared to regular cases. The case has a modular design with a front panel, protective film, middle frame, and back cover. The front and back connect to the middle frame with buckles. The protective film is sandwiched between. The back cover has a reversible lens protector that can be flipped over to form a phone stand. A rotating knob on the middle frame toggles the mute button. Corner thickening and anti-skid bumps protect the phone. A sealing plug on the back connects to the phone's bottom jack for further waterproofing.

CN217546119U-patent-drawing

7. Modular Protective Case with Dual-Layer Housing and Rotatable Peripheral Dock

MobileDemand LC, 2022

A modular protective case for mobile devices like tablets and smartphones that provides ruggedization against shocks and drops while also enabling convenient one-handed use with peripherals. The case has a flexible inner housing surrounded by a rigid outer housing, with port protectors to shield connectors. A terminal device dock attaches to the case and can be rotated out of the way when not in use. This docked device wirelessly connects to the mobile device. A barcode scanner and triggers are also attached to the case.

8. Mobile Phone Case with Thermocompressed Corner Airbags and Integrated Protective Layer

WANXINDA GUANGZHOU TECH PRODUCT CO LTD, WANXINDA TECHNOLOGY PRODUCT CO LTD, 2022

Mobile phone protective case with strong drop protection and super toughness. The case has an outer layer with cutouts for camera, buttons, and charging. Inside is a built-in protective layer. The outer layer has an airbag connected to it at one end and a buffer airbag at the other end. The airbags are thermocompressed to the case corners. This provides impact absorption and shock dispersion to prevent dropping damage.

9. Mobile Phone Case with Sealing Strip, Sliding Charging Port Cover, and Lens Protector

DONGGUAN GEWALA COMMUNICATION TECH CO LTD, DONGGUAN GEWALA COMMUNICATION TECHNOLOGY CO LTD, 2022

Waterproof mobile phone case that provides complete protection against water damage without impeding phone functionality. The case has a bottom shell that fits around the phone's sides and back. It has a sealing strip on the top edge to cover the phone's top. The bottom shell attaches to a top shell. The bottom shell also has a sliding charging port cover and lens protector. This design allows the phone to be fully enclosed in the sealed case for waterproofing, while still allowing access to the screen and charging port.

CN217307735U-patent-drawing

10. Protective Case with Scalloped Frame and Dual-Material Shock Absorbing Structure

Vinci Brands LLC, 2022

A protective case for portable electronic devices that provides impact protection while still allowing features of the device to be easily accessed. The case has a hard shell with a scalloped frame design that acts as a shock absorber when the case is dropped. The frame has an elastic bumper that provides cushioning around the device edges and a rigid base that provides support and structure. The frame bumper is made of a material that is different from the base and has lower elasticity.

US20220265015A1-patent-drawing

11. Layered Protective Case with Rigid Inner Layer and Resilient Outer Layer Featuring Visible Gaps and Matching Openings

JEFFERSON STREET HOLDINGS, LLC, 2022

A protective case for electronic devices like smartphones provides impact protection without covering the entire device. The case has a rigid inner layer with turned edges and a resilient outer layer with enveloping edges. This creates gaps between the layers that allow device features like logos to be visible. The rigid layer has openings and bridges, and the resilient layer has matching windows and bridges of smaller widths. This layered design allows impact absorption while leaving parts of the device visible and accessible.

12. Waterproof Mobile Phone Case with Detachable Snap-Fit Parts and Integrated Sealing Mechanism

CHEN LIWU, 2022

A waterproof mobile phone case with detachable snap-fit front and rear parts that provides improved sealing over traditional slide-on covers. The case has an inner PC sheet in the rear case and waterproof seals in the front frame that match the phone's button and port locations. This allows a tight snap fit without needing a separate gasket that can loosen. The front frame also has a removable silicone plug for the charging port.

CN215499125U-patent-drawing

13. Modular Mobile Device Case with Dual-Layer Housing and Interchangeable Functional Modules

MobileDemand LC, 2021

This is a modular protective case for mobile devices that allows customization with various ruggedized features and attachments. The case has a flexible inner housing surrounded by a rigid outer housing for impact resistance. Port protectors shield connectors when not in use. The case can add optional modules like a barcode scanner, payment terminal, or detachable keyboard. The modules connect to the device wirelessly or via ports in the case.

14. Phone Case with Rotating Baffle, Telescoping Rod, and Sliding Seat for Component Access and Shock Absorption

SHENZHEN YUANDONG ONLINE TRADE CO LTD, 2021

Waterproof phone case with shock absorption protection that allows easy access to device components while maintaining waterproofing. The case has features like a rotating baffle, telescoping rod, and sliding seat to enable adjustment of the camera, charging port, and microphone without removing the case. The case also has a spring-loaded connector, sliding rail, and soft padding for shock absorption. The waterproof skin covers the top and bottom of the case.

CN212875903U-patent-drawing

15. Modular Mobile Phone Case with Interlocking Inner and Outer Shells

GUANGZHOU WAKAO TECH CO LTD, GUANGZHOU WAKAO TECHNOLOGY CO LTD, 2021

A changeable combined mobile phone case with improved drop protection and customization options. The case has an inner shell that fits inside an outer shell. The inner shell has protrusions that interlock with the outer shell to prevent sliding. The outer shell has buttons and the inner shell has matching grooves. This allows disassembly for customization. The interlocking inner and outer shells provide better drop protection compared to a single-shell case. The interlocking mechanism also allows easy replacement of the outer shell for a fresh look. A camera hole in the inner shell aligns with the phone's camera.

16. Mobile Phone Case with Bent Inner Rim, Detachable Face Shell, and Integrated Rear Support Frame

DONGGUAN YAXUN COMMUNICATION TECH CO LTD, DONGGUAN YAXUN COMMUNICATION TECHNOLOGY CO LTD, 2021

Mobile phone case with a rear support frame for comprehensive protection. The case has a bent inner rim around the phone opening, buttons on the rim, and a face shell that attaches to the main case body. The rear shell has a support frame. This provides 360° protection with corner guards, front and back cushioning, and a rear support. The face shell and rear frame prevent drops from all directions.

17. Mobile Device Protective Case with Flexible Inner Sleeve and Rigid Outer Shell Engaging Mechanism

Incipio Technologies, Inc., 2020

Protective case for mobile devices like smartphones that allows full use of the device while still being protected. The case has two main parts: a flexible inner sleeve that surrounds the mobile device and provides full access to the screen, buttons, and ports, and a rigid outer shell that engages with the inner sleeve to protect the device. The inner sleeve can receive the device through a screen opening and has protrusions to manipulate controls and align with ports. The outer shell has fingers that engage with indents on the inner sleeve.

US10848194B2-patent-drawing

18. Mobile Phone Case with Strap-Connected Shells and Arc-Shaped Grip Rib

LYU YANG, 2020

A new type of mobile phone case with features to prevent dropping and provide better grip. The case has a face shell, a bottom shell connected by a strap, and an arc-shaped rib on the bottom shell that wraps around the phone. The strap connects the shells and prevents the phone from sliding out. The rib on the bottom shell provides extra grip. The case also has cutouts for the earpiece, camera, speaker, buttons, and charging port.

19. Foam Thermoplastic Polyurethane Mobile Phone Cover with Curved Side Panel and Outward-Widening Camera Aperture

DONGGUAN RICHPINE PLASTIC & LEATHER PRODUCTS CO LTD, 2020

An anti-collision mobile phone cover made of foam thermoplastic polyurethane that provides comprehensive protection and shock absorption for the phone. The cover has a curved side panel with cutouts for the phone's buttons and ports. The bottom plate has a camera hole that widens outward to match the lens size. This allows the case to fit tightly around the phone without blocking the camera view. The cover's elastic foam material fully envelops the phone to prevent impacts and drops.

CN211744533U-patent-drawing

20. Smartphone Protective Case with Elastic Frame and Customizable Button Interface

LANICASE CO LTD, 2020

A customizable protective case for smartphones that allows personalized button functionality and customizable appearance. The case has an elastic frame that can be stretched over the phone. The frame has openings for buttons and ports, and protrusions that guide the phone into place. Some of the openings have buttons with inner contacts that attach to the phone's buttons. This lets you press the case buttons to activate the phone buttons. The case also has areas where the frame can be removed to expose the phone's camera. This allows customizing the case's appearance by adding stickers or painting inside the removed areas.

TWM601937U-patent-drawing

21. Silicone Mobile Phone Case with Integrated Waterproofing and Functional Access Features

22. Sliding Two-Part Protective Case with Integrated Battery and Feature Access Cutouts for Portable Electronic Devices

23. Protective Cover with Integrated Electrical Adapter and Dual-Layer Construction for Portable Electronic Devices

24. Electronic Device Accessory Case with Chamfered Camera Opening and Integrated Button Covers

25. Mobile Phone Case with Magnetic Frame, Corner Airbags, and Flexible Liquid Silicone Shell

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The patents shown here demonstrate the various ways in which protection and accessibility can be balanced These include features that are disclosed through layered constructions for shock absorption, modular designs for increased usability, and strong outer shells concealing flexible inner elements.