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PatentBrief

Public Domain Pipeline

Patents expiring soon

Every patent below becomes free to use, manufacture, and sell without a license within the next 12 months. Ranked by forward citations — the best proxy for commercial importance.

Expiring in 12 months

11

Combined citations

350

Months covered

5

January 2027

3 patents expiring
US 8125456· Apple Inc· Expires Jan 3, 2027
How Touchscreens Save Battery by Sleeping Between Touches

A power-saving method for touchscreens that puts the main processor to sleep when not in use and wakes it up only when a touch is detected.

21

citations

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US 8493330· Apple Inc· Expires Jan 3, 2027
How Touchscreens Precisely Align Signals to Detect Your Touch

Apple's patent describes a way for touchscreens to adjust the timing of internal electrical signals so they perfectly match the signals coming from your finger, making touch detection more accurate.

13

citations

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US 7844915· Apple Inc· Expires Jan 7, 2027
How Touchscreens Handle Scrolling and Rubber-Band Effects

This patent describes the software logic that allows touchscreens to distinguish between simple scrolling and multi-finger gestures, while also enabling the signature 'rubber-band' bounce effect when you reach the end of a page.

132

citations

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February 2027

3 patents expiring
US 8219158· Research in Motion Ltd· Expires Feb 6, 2027
BlackBerry Device with QWERTY Keyboard and Trackball Design

This 2012 patent describes a handheld device, like an early BlackBerry, with a QWERTY keyboard and a trackball, focusing on the physical arrangement of keys around the navigation tool.

US 8130043· Anadigics· Expires Feb 13, 2027
How Multi-Stage Power Amplifiers Save Battery Life in Wireless Devices

This patent describes a clever way for electronic devices, like cell phones, to save battery power by using different amplifier circuits for strong and weak signals, making them more efficient.

13

citations

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US 7812828· Apple Inc· Expires Feb 22, 2027
How Touchscreens Use Math to Recognize Your Fingers

Apple's patent on using mathematical ellipses to track and identify individual fingers and palms on a touch-sensitive surface.

93

citations

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March 2027

3 patents expiring
US 7824959· Samsung Electronics Co· Expires Mar 28, 2027
How to Stack Computer Chips on a Wafer for Smaller Devices

This patent describes a method for stacking two full wafers of computer chips, where the chips on each wafer are roughly the same overall size but have different active areas, to create a compact system-in-package.

3

citations

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US 7833668· Bloom Energy· Expires Mar 30, 2027
How Fuel Cells Reuse Exhaust Hydrogen for High Efficiency

This patent describes a fuel cell system that captures and recycles over 95% of the unused hydrogen from its exhaust stream using a special pump, significantly boosting efficiency.

29

citations

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US 8209052· Societe de Commercialisation des Produits de la Recherche Appliquee SOCPRA· Expires Mar 30, 2027
How a Robot Actuator Controls Force and Speed with Gears

This patent describes a compact robot actuator that uses a special gear system and two motors with different electrical resistance to precisely control both the force and speed applied to a robotic arm or tool.

5

citations

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July 2027

1 patent expiring
US 7927078· General Electric· Expires Jul 12, 2027
How Wind Turbine Blades Reduce Noise with Small Fins

This patent describes how small, flat fins attached to the tips of wind turbine blades can reduce noise and improve efficiency by managing swirling air, called vortices.

17

citations

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October 2027

1 patent expiring
US 8168877· Harman International Industries Canada Ltd· Expires Oct 2, 2027
How to Automatically Generate Musical Harmonies from Audio

This 2012 patent describes a system that listens to music and automatically generates harmony notes to accompany a melody, even detecting and ignoring accidental strums on stringed instruments.

24

citations

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Expiration dates are derived from USPTO records. Maintenance fee lapses, terminal disclaimers, and SPTAs may alter actual expiration. Confirm with a registered patent attorney before making commercial decisions. Page refreshes daily.