Invalidity dossier

US 12303139

Added 10/7/2026, 12:00:15 AM

At a glanceActive PTAB challengeNo litigation on file

Active provider: DeepSeek · deepseek-v4-flash

Patent summary

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

✓ Generated

US12303139B2 — Overview

Title: Alignment guides, cut guides, systems and methods of use and assembly

Patent number: US12303139B2
Application number: US18/350,499
Publication: US20240016502A1 (published 2024-01-18); patent granted/published 2025-05-20
Filing date: 2023-07-11
Priority date: 2017-12-06 (as listed; noted in the source as an assumption)
Adjusted expiration: 2039-01-27
Status: Active
Inventor(s): Albert Dacosta; Laura Zagrocki Brinker; Randy Allard
Current/Original Assignee: Paragon 28 Inc

Plain-language scope

From the supplied text, the invention concerns alignment guides and cut guides, along with systems and methods for their use and assembly. The source's "prior art keywords" list includes: cut guide, base portion, guide, extension member, and arm — indicating the disclosure involves a base portion, an extension member, and an arm used in guiding alignment and cutting. The prior-art date is listed as 2017-12-06. Security-interest reassignments to and release by ARES CAPITAL CORPORATION are recorded (2023-11-02 and 2025-04-22) as formalities only.

What the excerpt does not establish

The supplied source contains no abstract, claims, or detailed description. Therefore this excerpt does not establish:

  • the specific structural configuration, dimensions, or materials of the guides;
  • the exact claimed subject matter, claim count, or claim scope;
  • the field(s) of use beyond what the title and keywords imply;
  • any prior-art references, prosecution history, or validity analysis;
  • litigation or ultimate ownership accuracy (the source expressly disclaims verification of assignees and legal status).

Any statement about precise scope would require the full patent text.

Source: https://patents.google.com/patent/[US12303139](/patent/US12303139)/en

Generated 10/7/2026, 12:00:48 AM

Cases on file (0)

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Litigation summary

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Proceedings on file (1)

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.

1 active

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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