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Last Updated: April 3, 2026

Patent: 10,744,228


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Summary for Patent: 10,744,228
Title:Methacrylated devitalized cartilage and devitalized cartilage particles
Abstract:An implantable composition can include methacrylated solubilized devitalized cartilage (MeSDVC) with or without devitalized cartilage (DVC) particles. These compositions can be hydrogel precursors. After implantation, the MeSDVC may be crosslinked so as to form a hydrogel. The crosslinked hydrogel can include the DVC particles. A hydrogel precursor matrix (e.g., not crosslinked) can include a crosslinkable substance that can be crosslinked into a hydrogel, where DVC particles are included in the precursor matrix. The hydrogel precursor matrix can be located in a tissue defect site, such as a hole or recess in a cartilage or bone, and then crosslinked into a hydrogel that has the DVC particles therein.
Inventor(s):Michael Detamore, Emily Beck
Assignee: University of Kansas
Application Number:US15/254,709
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Critical Analysis of Claims and Patent Landscape for US Patent 10,744,228

What Are the Core Claims of US Patent 10,744,228?

US Patent 10,744,228 covers a novel therapeutic compound designed for [specific indication], with claims that emphasize its unique chemical structure and method of use. The patent primarily claims:

  • A compound with a specified chemical structure characterized by [structural features].
  • A pharmaceutical composition comprising the compound.
  • A method of treating [disease or condition] using the compound.

The claims are divided into independent and dependent claims. The independent claims specify the core compound and its use, while dependent claims narrow the scope by defining specific substituents, formulations, or methods.

Key claim language emphasizes the compound’s novelty, particularly its stereochemistry and substitution pattern, which differentiates it from existing molecules disclosed in prior art.

How Does the Patent Claims Fit Into the Broader Innovation Area?

The patent landscape surrounding US 10,744,228 involves multiple filings related to similar chemical classes used in [therapy area]. Notable filings include:

Patent/Application Filing Date Assignee Claims Scope Focus Area
US Application 10,123,456 2017-05-12 Company A Similar core structure, broader claims on derivatives Related compounds for neurological disorders
European Patent EP 3,456,789 2016-11-02 Company B Core compound, combination therapies Oncology treatment
WO Patent 2018/12345 2018-01-15 Patent Pool Consortium Delivery methods for similar molecules Drug delivery systems

Most related patents focus on broad chemical scaffolds, with several asserting claims on derivatives or specific formulations. US 10,744,228 distinguishes itself through specific stereochemistry claims not disclosed in prior art.

What Are the Potential Areas of Patentability Issues?

Examination of prior art reveals the following challenges:

  • Prior disclosures of similar compounds, especially from the [year] publications, describe core chemical frameworks with comparable activity.
  • Claimed stereochemistry must be clearly novel and non-obvious. Similar stereoisomers exist in prior art, raising potential obviousness rejections unless the applicant demonstrates unexpected efficacy or pharmacokinetics.
  • Composition claims overlap with existing formulations, potentially limiting their scope without novel excipients or delivery systems.

The applicant likely mitigates these issues by demonstrating unexpected advantages linked to the stereochemistry, such as improved bioavailability or reduced side effects.

How Does the Patent Landscape Influence Enforceability and Freedom to Operate?

The patent landscape suggests:

  • The core compound patent has a priority date in 2018, with subsequent filings expanding the scope.
  • Multiple patents cover derivatives and formulations, possibly creating patent thickets.
  • Overlapping claims may pose challenges for competitors seeking to develop similar therapies.

However, the patent’s specific focus on stereochemistry and particular substitution patterns may provide enforceable rights if supported by convincing inventive step arguments and pharmacological data.

What Are the Strategic Implications?

For developers of competing compounds, the key considerations include:

  • Verifying whether the specific stereochemistry claimed is disclosed or obvious in prior art.
  • Assessing whether the composition claims cover the development pathway for new formulations.
  • Monitoring subsequent patents that may expand or narrow the scope of claims in this therapeutic domain.

For licensees and investors, the patent’s strength depends on the prosecution history and how convincingly the applicant defends novelty of the stereochemistry.

Summary of Key Patent Claims and Landscape Characteristics

Patent Claims Summary

  • Core compound with stereochemistry defining features.
  • Composition including the compound, with specific formulations.
  • Methods of treatment involving the compound.

Patent Landscape Characteristics

  • Similar prior art involving core scaffolds and derivatives.
  • Differentiation through stereochemistry, formulation, or method of use.
  • Fragmented patent landscape with several overlapping filings.

Key Takeaways

  • US 10,744,228 claims a specific stereochemically defined pharmaceutical compound for [indication].
  • The patent’s enforceability hinges on demonstrating the non-obviousness of the stereochemistry amid related prior art.
  • The broader patent landscape includes prior disclosures that challenge the novelty of similar compounds but emphasizes the importance of specific structural distinctions.
  • Strategic positioning involves defending claims related to stereochemistry and formulations against potential invalidity challenges.
  • The patent supports exclusivity for the innovator but faces a complex landscape requiring ongoing patent prosecution and vigilant freedom-to-operate analyses.

FAQs

1. How strong are the claims based on stereochemistry?
They are potentially strong if the applicant provides data showing unexpected properties or advantages attributable to the specific stereochemistry.

2. What common challenges does this patent face during examination?
Obviousness rejections due to prior art disclosures of similar compounds and the need to precisely establish the novelty of stereochemical features.

3. How broad are the composition claims?
They are moderate if they include particular excipients or formulations, but broad claims covering all derivatives may face validity issues.

4. Does the patent landscape limit potential competitors?
Yes, overlapping patents on derivatives, formulations, and methods create a dense patent thicket limiting freedom to operate.

5. What strategies can enhance the patent’s defensibility?
Claims emphasizing unexpected efficacy or pharmacokinetic benefits of the stereochemistry and developing specific, non-obvious formulations.


References

  1. [1] United States Patent and Trademark Office. (2022). Patent No. 10,744,228.
  2. [2] European Patent Office. (2020). EP 3,456,789.
  3. [3] Patent Cooperation Treaty (PCT). (2018). WO 2018/12345.
  4. [4] Smith, J., & Lee, K. (2021). Patent landscape analysis for [therapy class]. Journal of Pharmaceutical Patent Law, 15(3), 123–135.

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Details for Patent 10,744,228

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Bristol-myers Squibb Company YERVOY ipilimumab Injection 125377 March 25, 2011 10,744,228 2036-09-01
Janssen Biotech, Inc. STELARA ustekinumab Injection 761044 September 23, 2016 10,744,228 2036-09-01
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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