Invalidity dossier

US 6587759

Technique for effectively providing information responsive to a notable condition in a vehicle

Current assignee: American Calcar, Inc.

Added 8/27/2026, 12:47:19 AM

At a glanceNo PTAB challenges1 lawsuit on fileasserted by American Calcar, Inc.

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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: US 6,587,759 B2

Title: "Technique for effectively providing information responsive to a notable condition in a vehicle"

Patent number: US 6,587,759 B2 (application US 10/209,107; publication US 2002/0198635 A1)

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

Assignee: American Calcar Inc. (original and current assignee as listed)

Key dates (as listed; priority date is an assumption, not a legal conclusion):

  • Priority date: 1997-01-28
  • Filing date: 2002-07-30 (continuation-type filing; the excerpt does not state the relationship to the 1997 priority application)
  • Publication: 2002-12-26 (application); 2003-07-01 (grant)
  • Anticipated expiration: 2017-01-28
  • Legal status: Expired – Lifetime

Purpose and plain-language scope (from the supplied text only): The patent concerns a technique for effectively presenting information to a user in response to a "notable condition" occurring in a vehicle. Based on the listed classifications, the subject matter relates generally to vehicle control/indication systems and user interfaces—e.g., control systems for heating, cooling or ventilating devices; electronic suspension regulation combined with other vehicle control systems; and vehicle instrumentation/dashboards involving visual output and display screens, including input arrangements from user to vehicle. The prior-art keywords listed are: option, user, interface, vehicle, screen—suggesting a disclosure centered on a user interface presenting selectable options on a vehicle screen.

Source: https://patents.google.com/patent/US6587759/en

What the excerpt does not establish: The supplied text contains no abstract, claim language, or written description—so the actual claimed invention, its specific elements, and its precise operation cannot be determined from this excerpt. No independent verification of the "notable condition" definition is possible here. The excerpt also does not establish the patent's validity, enforceability, claim scope, or its relationship (if any) to related family members beyond the identifiers shown. Litigation, ownership transfers, and prior art were excluded per instructions. Statements above are limited strictly to bibliographic and classification data as presented at the source URL.

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

Cases on file (1)

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Specific litigation cases in our database that name US patent 6587759. 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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This patent in court (1)

1 tracked lawsuit name US 6587759.