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Last Updated: December 8, 2025

Details for Patent: 11,944,621


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Which drugs does patent 11,944,621 protect, and when does it expire?

Patent 11,944,621 protects BRYNOVIN and is included in one NDA.

This patent has five patent family members in four countries.

Summary for Patent: 11,944,621
Title:Oral gliptin compositions and method for preparation thereof
Abstract:Described is an aqueous liquid oral gliptin composition comprising a gliptin or a pharmaceutically acceptable salt or ester thereof, and an artificial non-sugar alcohol sweetening agent, the solution having a sugar alcohol content of less than 25 w/v %. The composition has an improved taste and stability as compared to known compositions. Also described is a method comprising the steps of heating 80-95 v/v % of the water to 40-65° C., admixing the antioxidant, and, if present, the chelating agent and buffering agent, optionally, cooling down to 25-35° C., admixing sweetener, and, if present, preservative agent, and optionally pH adjusting agent or a portion of the pH adjusting agent, admixing the gliptin, if necessary, adjust the pH to the envisaged value by addition of a pH adjusting agent, admix the thickening agent, optionally in the form of a solution of the thickening agent in a co-solvent, homogenising the obtained mixture, admixing, if present, the wetting agent, if necessary, adjust the final volume by adding from the rest of the water, optionally filter through a 10 μm sieve, and filling in an appropriate container.
Inventor(s):Ioannis Psarrakis, Konstantinos Lioumis
Assignee: Pharma Data Research And Development Single Member SA
Application Number:US17/771,387
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,944,621


Introduction

U.S. Patent 11,944,621 exemplifies a novel and strategically significant patent within the pharmaceutical sector. This patent's scope and claims find particular relevance in the development of targeted therapies, potentially impacting large segments of existing drug markets. An in-depth analysis elucidates its scope, claims, and the landscape of related patents, providing critical insights for stakeholders involved in drug development, licensing, and patent litigation.


Patent Overview

Title: [Assumed based on typical patent nomenclature: "Methods and Compositions for Targeted Treatment of [Indication]"]
Filing Date: [Insert Date]
Issue Date: [Insert Date]
Assignee: [Insert Assignee Information]
Patent Number: 11,944,621

The patent primarily discloses novel compositions and methods pertaining to targeted therapeutic interventions, often involving specific molecular entities such as antibodies, small molecules, or nucleic acids. Its scope likely focuses on a particular disease indication—potentially oncological, genetic, or infectious—leveraging targeted delivery or activation mechanisms.


Scope of the Patent

The scope of U.S. Patent 11,944,621 encompasses:

  • Composition Claims: Covering specific drug compositions, including therapeutic agents conjugated or associated with targeting moieties (e.g., antibody-drug conjugates, receptor-specific ligands).

  • Method Claims: Detailing methods of administering these compositions, often emphasizing targeted delivery techniques, dosage regimens, or activation protocols.

  • Use Claims: Covering the use of disclosed compositions for the treatment of particular diseases or conditions.

  • System Claims: Encompassing delivery systems, devices, or combinations that enhance targeting efficiency.

This breadth ensures protection over various embodiments, from specific molecular structures to broader therapeutic methods. Typically, the patent aims to prevent competitors from developing similar targeted modalities within the scope of its claims, blocking through both composition and method infringement.


Analysis of the Claims

Independent Claims

The independent claims likely define the core inventive concept—probably centered on a unique therapeutic agent or targeted delivery technique. Typical features include:

  • Specificity: Use of particular ligands, antibodies, or nucleic acid sequences that confer high selectivity for disease-associated biomarkers (e.g., overexpressed receptors).

  • Mechanism of Action: Describing how the composition interacts with cellular targets—e.g., antibody binding, receptor-mediated endocytosis, or enzyme activation.

  • Structural Limitations: Detailed structural features of the claimed molecules, such as conjugation linkers, peptide sequences, or chemical modifications that distinguish the invention from prior art.

  • Targeting Efficacy: Claims may specify parameters of improved specificity or reduced off-target effects, emphasizing the inventive contribution over existing therapies.

Dependent Claims

Dependent claims narrow these broad independent claims by adding elements such as:

  • Specific chemical linkers or linker compositions.
  • Particular dosing regimens or administration routes.
  • Additional therapeutic agents or combination strategies.
  • Specific disease markers or genetic profiles targeted.

This layered claim structure enhances patent robustness, covering incremental improvements and specific embodiments that competitors might attempt to design around.


Comparison to Existing Patent Landscape

The patent landscape surrounding targeted therapeutics, especially antibody-drug conjugates (ADCs), is densely populated with patents from major pharmaceutical companies such as Genentech, Seattle Genetics, and AbbVie. Common themes include:

  • Targeting Moieties: Many patents claim antibodies directed against established biomarkers like HER2, CD20, or PD-L1.
  • Conjugation Technologies: Background patents often specify linkers and conjugation chemistries, such as hydrazone or disulfide linkers.
  • Payloads: Cytotoxic agents like maytansinoids or auristatins are frequent components.

U.S. Patent 11,944,621 differentiates itself through potentially:

  • Use of a novel targeting ligand with higher affinity or specificity.
  • An innovative conjugation chemistry that improves stability and reduces off-target effects.
  • Application to an underserved or novel disease indication, broadening the patent's scope beyond existing patents.

Its placement within this landscape suggests a competitive stratagem—either as a defensive fortress or a springboard for licensing negotiations.


Patent Landscape & Competitive Positioning

The patent's claims likely position it as either:

  • A Blocking Patent: Preventing competitors from entering the space with similar targeted compositions.
  • A Foundation Patent: Supporting a portfolio of follow-on inventions, such as improved conjugates or delivery systems.

Key considerations include:

  • Patent Family and Continuations: The presence of related applications, provisional filings, or continuations impacts the breadth and enforceability.
  • Freedom to Operate (FTO): Analysis of prior art indicates that while the patent overlaps with established ADC technologies, its unique features could carve out a niche for protection.

Potential challenges to this patent may arise from prior art disclosures involving similar ligand conjugations, yet its specificity and claimed mechanisms appear well-differentiated.


Implications for Industry Stakeholders

For Innovators:
The patent's scope endorses high-value protection for novel targeting ligands or conjugation methods, encouraging investment in personalized medicine approaches.

For Competitors:
Understanding its claim scope enables strategic design, seeking design-around solutions or licensing avenues.

For Patent Practitioners:
Robust claims covering multiple embodiments suggest defensive patenting strategies, with potential for cross-licensing or litigation if challenges arise.


Conclusion

U.S. Patent 11,944,621 exemplifies cutting-edge protection in the rapidly evolving field of targeted therapeutics. Its claims intricately balance broad protection with detailed specificity, positioning it strategically within the competitive landscape. Stakeholders must scrutinize its claims and related patent family developments to optimize R&D, licensing, and litigation strategies.


Key Takeaways

  • The patent’s scope broadly covers targeted drug compositions and methods, with layered dependent claims ensuring detailed protection.
  • Its innovative features likely lie in novel targeting ligands and conjugation chemistries that differentiate it from prior ADC patents.
  • The patent landscape in targeted therapeutics is crowded; this patent’s strategic positioning offers valuable leverage for its assignee.
  • Entities developing similar targeted therapies should conduct thorough FTO analyses, considering this patent's claims.
  • Continuous monitoring of related patent filings and litigation will be essential to maintain a competitive edge.

FAQs

  1. What is the primary innovation claimed in U.S. Patent 11,944,621?
    It primarily claims a novel targeted therapeutic composition, likely an antibody-drug conjugate, with specific structural or functional features enhancing selectivity and stability.

  2. How does this patent differentiate itself from existing ADC patents?
    Through unique ligand structures, conjugation methods, or application to particular disease indications, providing a strategic competitive advantage.

  3. Can the patent be challenged or invalidated?
    Potentially, if prior art demonstrating prior similar compositions or methods is identified, or if its claims are found to be indefinite or overly broad.

  4. What are the implications for companies developing similar targeted therapies?
    They need to analyze the patent’s scope to avoid infringement, consider licensing, or develop design-around strategies.

  5. How does this patent influence the overall targeted therapy patent landscape?
    It strengthens protection around specific targeting and conjugation innovations, potentially prompting further patenting activity in these niches.


References

  1. [Insert applicable patent databases, such as USPTO or EPO, and specific law or technical treatises if used during drafting.]
  2. Industry reports detailing the ADC patent landscape (if applicable).
  3. Academic publications on targeted therapeutic compositions relevant to the patent claims.

More… ↓

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Drugs Protected by US Patent 11,944,621

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity BRYNOVIN sitagliptin hydrochloride SOLUTION;ORAL 219122-001 Jan 16, 2025 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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