Invalidity dossier

US 11057738

Adaptive context detection in mobile devices

Current assignee: Context Directions LLC

Added 8/25/2026, 6:47:10 PM

At a glanceNo PTAB challenges4 lawsuits on fileasserted by Context Directions LLC

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Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

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Patent Overview — US11057738B2

Title: Adaptive context detection in mobile devices
Patent number: US11057738B2
Application number: US16/182,863
Inventor: Pawel Aksamit
Current assignee (as listed): Context Directions LLC (originally assigned to Binartech Sp. Z O.O.)
Priority date (as listed): 2012-02-17
Filing date: 2018-11-07
Publication date: 2021-07-06
Anticipated expiration (as listed): 2033-02-05
Other version: US20190075429A1
Source: https://patents.google.com/patent/[US11057738](/patent/US11057738)/en

Purpose. The patent addresses context detection for mobile devices — a mobile device becoming aware of its environment, the user's current activity, and the user's circumstances. A stated special case is detecting that the device is located in a moving vehicle, such as a car. The text notes that using device functions to make calls or send messages while driving is inadvisable and in many countries prohibited, while other functions (e.g., navigation, or downloading and announcing road-hazard information by tone, voice, or visual message) may be advantageous in those circumstances.

Plain-language scope. The invention relates to a method for detecting context of a mobile device and to a mobile device having a context detection module, especially to detect that the device is located in a moving vehicle. The excerpt describes a known alternative approach — determining approximate position from cellular base-station signals and calculating average speed from position change over time — and notes that such positioning is typically uncertain by a few hundred meters to several kilometers. The excerpt's prior-art keywords include classification, mobile device, classifier, sensor, and groups, and its classifications cover location-based services using velocity/acceleration information, power saving based on local events, and context/environment-adapted mobile phone user interfaces.

What the excerpt does not establish. It does not set out the claims, the detailed description, the specific classification/sensor-group architecture, any prior-art references relied upon, or the outcome of the listed litigation. Nor does it verify inventorship, ownership, or legal status beyond the listed data.

Generated 10/1/2026, 10:04:10 PM

Cases on file (4)

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Specific litigation cases in our database that name US patent 11057738. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

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Proceedings on file (0)

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AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.

Current assignee: Context Directions LLC

No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

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Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

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Prior art

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Obviousness

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Extensions

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Derivative works

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