Invalidity dossier
US 11083586
Systems and methods for multi-planar orthopedic alignment
Current assignee: Carlsmed Inc
Added 9/24/2026, 1:47:55 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: US11083586B2
Title: Systems and methods for multi-planar orthopedic alignment
Patent number: US11083586B2 (application US16/207,116; pre-grant publication US20190167435A1)
Assignee: Carlsmed Inc (original assignee Carlsmed Inc; assignment recorded 2019-03-10 from inventor Michael J. Cordonnier)
Inventor: Michael J. Cordonnier
Key dates: Priority date 2017-12-04; filing date 2018-12-01; publication date 2021-08-10; anticipated expiration 2038-12-01. Legal status listed as Active (the source notes this is an assumption, not a legal conclusion).
Purpose and plain-language scope: The patent relates to designing and manufacturing patient-specific (customized) orthopedic implants, particularly spinal fusion devices, using medical imaging. Per the source text, the classification and prior-art keywords indicate the subject matter covers designing or making customized prostheses using templates, CT or NMR scans, finite-element analysis, or CAD-CAM techniques, and mathematical models. The prior-art keywords are "patient," "implant," "image data," "geometric characteristics," and "virtual model," indicating the approach involves deriving geometric characteristics of a patient from image data and using a virtual model to align an implant across multiple planes. The classifications place the invention among intervertebral fusion cages, including rectangular/trapezoidal and kidney- or circular-cross-section designs, and among patient-specific surgical instruments or methods produced with shape and dimensions specific to an individual patient.
Source: https://patents.google.com/patent/[US11083586](/patent/US11083586)/en
What the excerpt does not establish: The supplied text is largely bibliographic and classification data; it does not include the claims, detailed description, or drawings. Therefore it does not establish the specific claimed elements, claim scope, embodiments, or how the multi-planar alignment is actually performed. It also does not establish validity, enforceability, or the accuracy of the listed legal status or assignee (the source itself disclaims legal analysis of these). No litigation or ownership-transfer information is presented here.
(Word count: approximately 290)
Generated 10/1/2026, 9:31:05 PM
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Litigation summary
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Proceedings on file (0)
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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.