Invalidity dossier
US 9492192
Atherectomy devices, systems, and methods
Current assignee: AtheroMed Inc
Added 9/23/2026, 12:59:47 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US9492192B2
Title: Atherectomy devices, systems, and methods
Patent number: US9492192B2 | Application: US12/215,854 | Publication date: 2016-11-15
Assignee: AtheroMed Inc (original and current assignee listed).
Dates: Priority date 2006-06-30; filing date 2008-06-30; granted 2016-11-15. Status listed as Active, with adjusted expiration 2028-07-23.
Inventors: John T To, Christopher James Danek, Paul Quentin Escudero, Uriel Hiram Chee, August Christopher Pombo, Torrey Smith, Brenda Hann.
Purpose (plain language): The patent concerns atherectomy — devices, systems, and methods for cutting and removing material (such as plaque or lesion tissue) from a blood vessel. The excerpt's prior-art keywords center on "cutter," "catheter," "catheter body," "sweep," and "cutting." Description subject matter spans tissue, arteries, lesions, bending, sweeping, visualization, imaging, and treatments involving the femoral, tibial, popliteal, and iliac arteries, along with references to peripheral arterial disease and restenosis, plus drug, coating, flushing, and thrombectomy concepts. Suggested materials include stainless steel, nickel titanium, polyethylene, polyurethane, nylon, and polyether block amide; referenced drugs include clopidogrel, sirolimus, heparin, and dexamethasone.
Scope: The excerpt includes no claim text. Scope therefore cannot be stated in terms of specific claimed limitations; only the general field and disclosed subject matter above can be described. Related family filings are indicated (e.g., US20090024085A1; WO2009054968A1; EP2211732B1; CN102088920B).
What the excerpt does not establish: It supplies no claims, no detailed description, and no drawings, so claim scope, claim count, and specific embodiments are not verifiable here. It does not establish validity, enforceability, litigation, licensing, or actual ownership history — the legal-status and assignee statements are expressly designated as assumptions, not legal conclusions. Keyword frequencies are metadata, not claim limitations. The excerpt also does not establish priority-chain correctness, since priority dates are identified as assumptions.
Source: https://patents.google.com/patent/[US9492192](/patent/US9492192)/en
Generated 10/1/2026, 9:53:20 PM
Cases on file (0)
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Proceedings on file (0)
All PTAB activity →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.
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.
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.
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.