Invalidity dossier

US 6542795

Technique for providing information and control responsive to a request in a vehicle

Current assignee: American Calcar, Inc.

Added 8/27/2026, 12:47:17 AM

At a glanceNo PTAB challenges2 lawsuits on fileasserted by American Calcar, Inc.

Active provider: DeepSeek · deepseek-v4-flash

Patent summary

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

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Patent Overview — US 6542795 B2

Title: "Technique for providing information and control responsive to a request in a vehicle"

Patent number: US6542795B2 (application US10/176,444)

Assignee: American Calcar Inc. (listed as both original and current assignee; Google notes assignee listings may be inaccurate).

Inventors: Michael L. Obradovich, Michael L. Kent, John G. Dinkel.

Key dates (as listed):

  • Priority date: 1997-01-28 (noted as an assumption)
  • Filing date: 2002-06-20
  • Publication of US20020156555A1: 2002-10-24
  • Grant/publication: 2003-04-01
  • Anticipated expiration: 2017-01-28
  • Legal status: Expired – Lifetime

Purpose and plain-language scope (from the supplied text): The patent concerns a technique for providing information and control in a vehicle in response to a request. The excerpt supplies the title and classification data but no abstract, claims, or detailed description. The classifications indicate the subject matter relates to vehicle instrumentation and user interfaces: input arrangements from user to vehicle (B60K35/10), visual output arrangements including display screens and combinations of multiple visual outputs (B60K35/20, /21, /215, /22), and climate-control systems responsive to vehicle driving conditions such as speed or GPS-based position (B60H1/00764, /00771). Also listed is suspension control combined with other vehicle control systems (B60G17/0195). Prior-art keywords listed are: option, vehicle, interface, user, screen. The listed litigation links are not analyzed here per instruction.

Source: https://patents.google.com/patent/US6542795/en

What the excerpt does not establish: It contains no abstract, claims, dependent-claim text, or detailed description, so the precise claimed scope, claim limitations, embodiments, and any specific "request"-handling mechanism cannot be described. Classification codes alone do not define claim coverage. Dates are expressly flagged as assumptions. Litigation, ownership transfers, validity, and prior-art comparisons are outside this overview and are not addressed.

Generated 10/1/2026, 10:03:45 PM

Cases on file (2)

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Specific litigation cases in our database that name US patent 6542795. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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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: American Calcar, Inc.

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

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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Obviousness

Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.

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Extensions

Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.

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Derivative works

Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.

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More patents asserted by American Calcar, Inc.

This patent in court (2)

2 tracked lawsuits name US 6542795.