Invalidity dossier
US 11986382
System for treating embolism and associated devices and Methods
Current assignee: Stryker Corp
Added 9/23/2026, 1:08:13 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: US 11,986,382 B2
Title: System for treating embolism and associated devices and Methods
Patent number: US11986382B2
Assignee: Inari Medical, Inc. (current assignee listed; original assignee also Inari Medical Inc)
Inventors: Ben Merritt; Jacqueline Macias; Brian Michael Strauss; Thomas Tu
Key dates (as listed):
- Priority date: 2018-08-13
- Filing date: 2023-02-10 (application US18/167,757)
- Publication of application: 2023-06-29 (US20230200970A1)
- Grant/publication date: 2024-05-21
- Anticipated expiration: 2039-08-08
- Legal status: Active
Purpose and plain-language scope (based only on the supplied text):
The patent is directed to a system for treating embolism, along with associated devices and methods. The supplied excerpt identifies the prior-art keywords used in the record — syringe, catheter, clot material, vacuum, blood — which indicate the subject matter concerns clot (embolism) removal involving a catheter and a syringe that applies vacuum to draw clot material and blood. Beyond these keywords, the excerpt contains no claim text, abstract, or description, so no further scope can be stated.
Source: https://patents.google.com/patent/US11986382/en (excerpted text; consult the source for omitted content).
What the excerpt does not establish:
- The specific claims, their number, or their language.
- The detailed structure, components, or embodiments of the system.
- The abstract or written description.
- The identity or content of any cited prior art.
- Litigation activity, despite the record noting a Delaware District Court case and family litigation flags.
- Ownership or assignment histories beyond the listed reassignments (not analyzed here).
- Validity, patentability, or enforceability.
Note: The supplied text is largely a bibliographic/legal-status record; substantive technical content was not included.
Generated 10/1/2026, 9:53:15 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.