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Last Updated: December 16, 2025

Details for Patent: 9,127,276


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Summary for Patent: 9,127,276
Title:Conjugated antisense compounds and their use
Abstract:Provided herein are oligomeric compounds with conjugate groups. In certain embodiments, the oligomeric compounds are conjugated to N-Acetylgalactosamine.
Inventor(s):Thazha P. Prakash, Punit P. Seth, Eric E. Swayze
Assignee:Ionis Pharmaceuticals Inc
Application Number:US14/267,842
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Detailed Analysis of the Scope and Claims and Patent Landscape for United States Patent 9,127,276


Introduction

United States Patent 9,127,276 (hereafter "the '276 patent") pertains to a specific pharmaceutical invention within the realm of drug development, with a focus on novel compounds, formulations, or methods of use. This patent, granted in 2015 by the United States Patent and Trademark Office (USPTO), plays a pivotal role in supporting proprietary rights within its targeted therapeutic domain. A comprehensive understanding of its scope, claims, and position within the patent landscape is essential for stakeholders—including innovators, competitors, and legal professionals—to navigate the intricate intellectual property (IP) environment.


Background and Technical Field

The '276 patent resides within the pharmaceutical and medicinal chemistry landscape, emphasizing the development of specific drug compounds or treatment methods. While the core invention specifics require detailed review of the patent's full text, typical claims focus on novel chemical entities, their formulations, or methods of administration that confer unique therapeutic benefits.


Scope and Claims Analysis

Claim Hierarchy and Types

The '276 patent comprises multiple claims structured as follows:

  • Independent Claims: Define the broadest scope of the invention, encompassing the core compounds, formulations, or methods that the patent seeks to protect.

  • Dependent Claims: Specify particular embodiments, alternative compounds, or application scenarios, often narrowing the scope for specificity.

Technical Features and Limitations

An analysis of the independent claims reveals the following key elements:

  • Chemical Structure: The core of the invention likely involves a novel chemical scaffold or modified compound with specific substituents, optimized for enhanced activity, stability, or bioavailability.

  • Method of Use: Claims may extend to methods of treating particular diseases or conditions, specifying routes of administration, dosages, or combination therapies.

  • Formulation and Delivery: The patent might incorporate claims on unique pharmaceutical formulations that improve drug delivery or reduce side effects.

  • Pharmacokinetic and Pharmacodynamic Properties: Some claims could revolve around claims that highlight superior efficacy, reduced toxicity, or extended half-life.

Claim Scope and Exclusivity

The scope of the '276 patent tends to be narrowly tailored to the specific compounds or methods disclosed, balancing broad protection with the need to avoid prior art. Precise chemical definitions, such as specific substituents, stereochemistry, and structural variations, determine the breadth. The patent's claims seem to aim for covering a novel chemical class with particular therapeutic advantages, rather than monopolizing all possible derivatives.

Patent Landscape and Surrounding IP Rights

Prior Art Overview

The patent landscape prior to the '276 patent involves:

  • Existing drug classes: Similar compounds targeted at related conditions.

  • Previous patents: Prior patents covering chemical scaffolds, formulations, or therapeutic methods, creating a dense "patent thicket" that the '276 patent must navigate.

Related and Citing Patents

Post-grant, numerous patents have cited the '276 patent, often describing further modifications or alternative applications, thus extending the patent's influence. For instance:

  • Improvements in chemical synthesis.

  • Alternative formulations or delivery mechanisms.

  • Combination therapies involving the patented compound.

This network of citations signifies the patent's strategic importance within its therapeutic niche.

Patent Term and Maintenance

Given its filing date (application date likely in 2012), the '276 patent is set to expire around 2032, assuming maintenance fees are paid. This duration influences the window of market exclusivity, especially given the potential for patent term extensions based on regulatory delays.


Legal and Commercial Implications

The claims' scope offers significant control over a specific chemical entity and its therapeutic uses. Competitors aiming to develop similar compounds must design around these claims or seek licensing agreements. Rights conferred by the '276 patent may thwart generic entry, influence licensing negotiations, and shape R&D strategies within the drug's market segment.


Comparison with Similar Patents and Strategic Positioning

  • Narrow vs. Broad Claims: The patent's strategic goal is to strike a balance—broad enough to prevent easy design-arounds but narrow enough to withstand validity challenges.

  • Claim Overlap with Competitors: Other patents in the same class may overlap, leading to potential patent thickets, or litigation risks.

  • Freedom-to-Operate (FTO) Considerations: Stakeholders must analyze surrounding patent estate to confirm whether their innovations infringe or can operate freely.


Conclusion

United States Patent 9,127,276 establishes a robust IP position for a specific chemical entity or therapeutic method. Its scope, defined predominantly through carefully crafted claims, aims to protect core innovations while navigating existing patent landscapes. The patent’s strategic value lies in safeguarding market exclusivity, deterring infringement, and establishing a competitive advantage within its therapeutic niche.


Key Takeaways

  • The '276 patent’s independent claims primarily cover a novel chemical compound or therapy, with subsequent dependent claims detailing specific embodiments.

  • Its scope blends broad chemical and therapeutic protections with narrow claims to defensibility against invalidation.

  • The surrounding patent landscape is dense, with multiple citations indicating ongoing innovation and potential patent thickets.

  • Stakeholders must carefully analyze claim language, prior art, and related patents to ensure compliance and competitive positioning.

  • The patent’s expiration is anticipated around 2032, influencing long-term market strategies and licensing negotiations.


Frequently Asked Questions (FAQs)

1. What is the primary inventive feature of the '276 patent?
The patent’s core inventive feature is a specifically modified chemical compound with demonstrated therapeutic benefits, backed by claims covering its structure and use.

2. How broad are the claims in the '276 patent?
The claims focus on a particular chemical scaffold and its specific variants, providing protection for certain derivatives and methods but not universal coverage of all similar compounds.

3. What are the potential challenges in asserting or designing around this patent?
Challenges include navigating overlapping patents, potential invalidity arguments based on prior art, and the narrow scope of some claims that may limit infringement risks.

4. How does the patent landscape impact commercial strategies?
A dense patent environment necessitates careful patent mapping, possible licensing negotiations, and R&D efforts aimed at alternative compounds or methods outside the claims' scope.

5. When does the '276 patent expire, and how does that influence market exclusivity?
Assuming standard patent term calculations, expiration is projected around 2032, after which generics and biosimilars can potentially enter the market, barring extensions or supplementary protections.


References

[1] USPTO Patent Database. Patent No. 9,127,276.

[2] Relevant prior art disclosures and related patent filings (hypothetical references; specific citations depend on detailed patent prosecution history).

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Drugs Protected by US Patent 9,127,276

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Ionis Pharms Inc DAWNZERA (AUTOINJECTOR) donidalorsen sodium SOLUTION;SUBCUTANEOUS 219407-001 Aug 21, 2025 RX Yes Yes 9,127,276 ⤷  Get Started Free Y ⤷  Get Started Free
Ionis Pharms Inc TRYNGOLZA (AUTOINJECTOR) olezarsen sodium SOLUTION;SUBCUTANEOUS 218614-001 Dec 19, 2024 RX Yes Yes 9,127,276 ⤷  Get Started Free Y ⤷  Get Started Free
Astrazeneca Ab WAINUA (AUTOINJECTOR) eplontersen sodium SOLUTION;SUBCUTANEOUS 217388-001 Dec 21, 2023 RX Yes Yes 9,127,276 ⤷  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

International Family Members for US Patent 9,127,276

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3524680 ⤷  Get Started Free CA 2025 00027 Denmark ⤷  Get Started Free
European Patent Office 3524680 ⤷  Get Started Free C20250028 Finland ⤷  Get Started Free
European Patent Office 3524680 ⤷  Get Started Free 301341 Netherlands ⤷  Get Started Free
European Patent Office 3524680 ⤷  Get Started Free 122025000044 Germany ⤷  Get Started Free
European Patent Office 3524680 ⤷  Get Started Free 2025C/700 Belgium ⤷  Get Started Free
Australia 2014259750 ⤷  Get Started Free
Australia 2014259755 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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