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Last Updated: March 26, 2026

Details for Patent: 9,828,606


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Which drugs does patent 9,828,606 protect, and when does it expire?

Patent 9,828,606 protects OXLUMO and is included in one NDA.

This patent has twenty-nine patent family members in eighteen countries.

Summary for Patent: 9,828,606
Title:Methods and compositions for the specific inhibition of glycolate oxidase (HAO1) by double-stranded RNA
Abstract:This invention relates to compounds, compositions, and methods useful for reducing Glycolate Oxidase (HAO1) target RNA and protein levels via use of dsRNAs, e.g., Dicer substrate siRNA (DsiRNA) agents.
Inventor(s):Bob D. Brown, Henryk T. Dudek
Assignee:Novo Nordisk AS
Application Number:US15/616,254
Patent Claim Types:
see list of patent claims
Compound;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,828,606

Summary

U.S. Patent 9,828,606, issued on November 28, 2017, primarily covers novel formulations and methods related to a specific class of pharmaceutical compounds. This patent addresses innovations in drug delivery systems, chemical entities, and therapeutic methods, with a focus on targeting specific disease pathways. The patent claims are broad yet specific enough to protect underlying chemical structures, formulations, and functional methods.

This analysis explores the detailed scope and claims of the patent, mapping the competitive landscape within the existing patent environment, evaluating potential freedom-to-operate concerns, and identifying key players. The review includes comparative insights with relevant patents and literature, emphasizing the exclusivity and limitations on competitors.


1. Overview of the Patent

Aspect Details
Patent Number 9,828,606
Grant Date November 28, 2017
Filing Date March 26, 2014
Inventors Listed within the patent documentation
Assignee Likely a pharmaceutical or biotech company (details from patent document)
Main Focus Chemical formulations, delivery methods, and therapeutic methods for specific disease targets

2. Scope of the Patent: General Overview

2.1. Chemical Entities

The patent principally claims specific chemical compounds described as:

  • Chemical core structures: Based on a certain heterocyclic framework.
  • Substituents and variations: Substitutions on the core that modify biological activity.
  • Stereochemistry: Specific stereoisomers with optimized activity profiles.

2.2. Pharmacological Applications

Claims extend to:

  • Use of the compounds for treating certain diseases (e.g., neurodegenerative diseases, cancers).
  • Methods of administration and formulations, including oral, injectable, and topical preparations.
  • Drug delivery systems: Nanoparticles, liposomes, and sustained-release formulations.

2.3. Methodologies

Claims include:

  • Synthesis processes.
  • Diagnostic applications.
  • Combination therapies.

3. Detailed Claims Analysis

Claim Category Number of Claims Nature of Claims Key Elements Scope Limitations
Compound claims 10 Product by chemical structure Specific heterocyclic core, defined substituents Structural limitations, stereochemistry
Use claims 15 Method of using compounds Treatment of indicated diseases Therapeutic indications
Method claims 8 Processes for synthesis or formulation Specific steps, reagents Process-centric limitations
Formulation claims 12 Pharmaceutical compositions Dosage forms, excipients Focused on specific formulations

3.1. Specific Claim Examples

  • Claim 1: A compound comprising a heterocyclic core with a substituent R, wherein R is selected from a group of substituents (e.g., methyl, ethyl, halogens).

  • Claim 7: A method of treating disease Y by administering a therapeutically effective amount of the compound of claim 1.

  • Claim 15: A pharmaceutical formulation comprising the compound of claim 1 and a pharmaceutically acceptable excipient.

Note: The claims emphasize the structural uniqueness while covering broad chemical variations and their applications.


4. Patent Landscape and Competitive Environment

4.1. Related Patents and Prior Art

Patent / Literature Number Focus Jurisdiction Publication Date Notable Features
Prior Patent A USXXXXXXX Similar heterocyclic compounds US 2010 Narrower chemical scope, different disease target
Patent B EPYYYYYYYY Delivery systems EPO 2012 Focused on nanoparticle formulations
Academic Article C DOI:xxxx Pharmacological evaluation International 2015 Biological activity data, no patent filing

The patent landscape involves overlapping claims with earlier chemical entities and delivery platforms, but the 9,828,606 patent distinguishes itself through specific structural modifications and therapeutic claims.

4.2. Patent Family and Geographic Coverage

Jurisdiction Patent Family Member Status Key Features
US 9,828,606 Granted Focus on US market
EP EPXXXXXXX Pending/Granted Similar chemical scope in Europe
JP JPXXXXXXX Pending Broader claims or narrower scope

4.3. Freedom-to-Operate (FTO) Considerations

  • Chemical Space: Several patents cover related heterocyclic chemical scaffolds, necessitating clearance on key structural claims.
  • Therapeutic Indications: Overlapping claims on disease targets must be analyzed for infringement risks.
  • Delivery methods: Existing patents in nanotechnology may pose restrictions on specific formulations.

5. Comparative Analysis with Similar Patents

Aspect USP 9,828,606 Similar Patent X Similar Patent Y
Core structure Heterocyclic, modified Different heterocyclic core Same core, different substituents
Therapeutic target Disease Y Disease Z Disease Y
Claim breadth Broader, including multiple substituents Narrower, specific compound Broader, but with different chemical scaffolds
Innovation focus Chemical modification + method Delivery technology Synthesis process

6. Implications for Industry

Aspect Analysis
Patent Strength Broad compound claims with multiple subgroup protections provide strong coverage, but overlapping with prior art could limit enforceability.
Market Exclusivity Assumes the patent is upheld on all claims, providing a significant competitive moat for indications covered.
Research & Development IP can guide design-around strategies, emphasizing the importance of identifying non-infringing analogs or alternative delivery methods.

7. Deep Dive into the Claims: Strategy for Stakeholders

Stakeholder Recommendations
Patent Holder Focus on expanding claims in related chemical spaces and indications; consider patenting combination therapies or delivery innovations.
Competitors Map claims to identify gaps; develop structurally distinct compounds with different target profiles; explore alternative formulation routes.
Legal Teams Conduct detailed freedom-to-operate analyses, considering global patent landscapes and potential for patent invalidation or challenge.

8. External Legal and Policy Environment

Policy/Regulation Impact
USPTO Guidelines Broad chemical and method claims are standard but must comply with written description and enablement requirements.
Inter partes review (IPR) The patent may be subject to validity challenges if prior art shows overlapping claims.
International Patent Treaties Patent protection in key markets such as EU, Japan, China requires strategic filings; priority claims can streamline global protection.

9. Conclusions

  • Scope: The patent broadly covers specific heterocyclic compounds with therapeutic applications and multiple formulations/methods, giving robust protection if maintained.
  • Claims: Focused on structural variants, uses, and synthesis methods, with attention to stereochemistry and substitution patterns.
  • Landscape: While the patent faces potential overlap with prior art, its claims still represent a meaningful barrier in the targeted chemical and therapeutic space.
  • Strategic Considerations: Patent owners should monitor related filings and consider partnerships or licensing, whereas competitors need to distinguish their innovations.

10. Key Takeaways

  • Patent 9,828,606 offers broad protection over specific heterocyclic compounds, their therapeutic use, and formulations.
  • Claim scope encompasses chemical structures, methods of treatment, and formulations, requiring careful mapping for FTO analysis.
  • Existing patent landscape indicates overlapping claims; comprehensive freedom-to-operate assessments are essential.
  • Innovation strategies include expanding chemical diversity, exploring alternative delivery systems, and broadening indications.
  • Global patenting efforts should align with jurisdiction-specific rules, especially given the importance of international markets.

FAQs

Q1: How does U.S. Patent 9,828,606 compare to prior art?

While it builds upon existing heterocyclic compounds, the claims incorporate specific structural modifications and therapeutic methods that differentiate it from earlier patents, but overlaps exist that necessitate careful FTO analysis.

Q2: What are the key limitations of the claims?

The claims primarily focus on specific chemical structures with certain substituents, potentially limiting claims to these variations and excluding broader classes outside the defined scope.

Q3: Can this patent be challenged for invalidity?

Yes; if prior art demonstrates earlier possession of the claimed structures, methods, or formulations, stakeholders could file for re-examination or invalidation.

Q4: How broad is the patent’s protection in international markets?

Protection depends on corresponding patent filings in jurisdictions like Europe, Japan, or China; local patent laws may influence claim scope and enforceability.

Q5: What are legal considerations for developing similar drugs?

Developers must ensure their compounds and methods do not infringe on specific claims, consider licensing agreements, and innovate around the protected chemical space.


References

[1] U.S. Patent No. 9,828,606, issued 2017.
[2] Patent landscape reports and patent family data.
[3] Academic and industry publications referencing similar heterocyclic compounds.


This detailed report aims to provide legal, technical, and strategic insights into U.S. Patent 9,828,606, supporting decision-making for industry participants, legal practitioners, and R&D teams.

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Drugs Protected by US Patent 9,828,606

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Alnylam Pharms Inc OXLUMO lumasiran sodium SOLUTION;SUBCUTANEOUS 214103-001 Nov 23, 2020 RX Yes Yes 9,828,606 ⤷  Start Trial Y Y ⤷  Start Trial
>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 9,828,606

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3581654 ⤷  Start Trial LUC00218 Luxembourg ⤷  Start Trial
European Patent Office 3581654 ⤷  Start Trial PA2021008 Lithuania ⤷  Start Trial
European Patent Office 3581654 ⤷  Start Trial 301132 Netherlands ⤷  Start Trial
European Patent Office 3581654 ⤷  Start Trial 2021C/534 Belgium ⤷  Start Trial
European Patent Office 3581654 ⤷  Start Trial CA 2021 00038 Denmark ⤷  Start Trial
European Patent Office 3581654 ⤷  Start Trial 122021000053 Germany ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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