Invalidity dossier
US 8062324
Device and method for vascular filter
Current assignee: Keystone Heart Ltd
Added 9/21/2026, 10:20:39 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US8062324B2
Title: Device and method for vascular filter
Source: https://patents.google.com/patent/[US8062324](/patent/US8062324)/en
Key dates and identifiers
- Application number: US11/429,443
- Filing date / prior art date / priority date: 2006-05-08
- Publication date (grant): 2011-11-22
- Legal status as listed: Active, adjusted expiration 2028-11-04
- Inventors: Dov V. Shimon, Gil Naor, Yuval Shezifi
- Original assignee: S M T Res and Dev Ltd; current assignee listed as Keystone Heart Ltd
Purpose
The device is inserted into a blood vessel to block particles such as emboli, blood clots, or other objects from passing through and damaging a blood vessel or downstream tissue.
Plain-language scope
Per the supplied text, embodiments include an intra-vascular device (IVD) with a filter supported by a frame or skeleton, and one or more bows extending outward from a horizontal plane of the device. A lower bow's lateral surface contacts a first blood vessel (described as a lateral surface of an ascending aorta), and an upper bow's lateral surface contacts a second blood vessel (described as a medial surface of a subclavean artery). An end of the skeleton may bend below the filter plane, with the upper lateral surface of that bend pressing against a vessel wall. The skeleton and bows may be a continuous wire or upper and lower loops with mesh held between them. The filter may include knitted fibers, a sheet with holes (optionally non-uniform hole density), or fibers running in multiple directions, including fibers returning to the same side. Some fibers may carry a medicament. A clasp may connect the device to a catheter, allowing clockwise and counterclockwise rotation.
A disclosed method includes inserting the device into a first vessel to cover an opening of a second vessel, pressing a bow against each vessel wall, bending an end of the skeleton below the filter plane, and linking device and catheter clasps.
What the excerpt does not establish
The excerpt omits the claims, the full description and figures, the complete prosecution history, and details of the assignment and security-interest entries. It also does not establish litigation, validity, or prior-art scope; no such research was performed.
Generated 10/1/2026, 10:01:46 PM
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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.