You can freely build on How Multi-Touch Screens Track Multiple Fingers at Once
This patent expired in 2024. Every claim — 0 independent, 1 dependent — is now unenforceable. Anyone can use, reproduce, manufacture, sell, or offer for sale this technology without a license.
Original assignee
Apple Inc
Patent granted
2010
Expired
2024
Forward citations
1,995
What this patent covers
The patent describes a system using a grid of transparent conductive lines, typically made of Indium Tin Oxide (ITO), arranged in two separate layers. These layers are stacked so the lines in the top layer run perpendicular to the lines in the bottom layer. By monitoring the charge coupling at the intersection points of these lines, the system can pinpoint exactly where multiple fingers touch the screen at the same time. This allows a device to distinguish between a single tap and complex gestures like pinching or zooming.
What is now free to use
All 1 claims of US 7663607 are in the public domain. Specifically:
The 1 dependent claim add narrowing limitations and are also free.
What is NOT covered
Patent expiry frees this specific invention. Separately-patented improvements made after expiry may still be protected.
Does not cover single-touch screens that only detect one point of contact at a time.
Does not cover resistive touch screens that rely on physical pressure to connect two flexible layers.
Does not cover non-transparent touch sensors used in trackpads or other non-display surfaces.
Does not cover the software algorithms used to interpret the touch data into specific gestures like pinch-to-zoom.
Who is building on this today
Apple continues to refine this technology in its latest devices, while major display manufacturers like Samsung Display and LG Display have built upon these foundational concepts to create increasingly sensitive and thinner touch-integrated panels.
Products built on expired version of this technology
Original iPhone and subsequent iPhone models
iPad touch displays
Modern capacitive smartphone screens
Multi-touch tablet interfaces
How to cite this patent in your documentation
Apple Inc. US Patent 7663607. Multipoint touchscreen. Granted 2010, expired 2024. Now in the public domain.
Note: This is a convenience citation. Consult a patent attorney for formal freedom-to-operate analysis.
PatentBrief is an educational resource and does not provide legal advice. Patent expiration information is derived from USPTO records and may not reflect continuation patents, divisional filings, or separately-patented improvements. For commercial use or production decisions, obtain a formal freedom-to-operate (FTO) opinion from a registered patent attorney.