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Last Updated: March 17, 2026

Details for Patent: 9,687,519


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Summary for Patent: 9,687,519
Title:Methods and compositions for the prevention or treatment of barth syndrome
Abstract:The disclosure provides methods of preventing or treating Barth Syndrome in a mammalian subject, reducing risk factors associated with Barth Syndrome, and/or reducing the likelihood or severity of Barth Syndrome. The methods comprise administering to the subject an effective amount of an aromatic-cationic peptide to increase expression of TAZ1 in subjects in need thereof.
Inventor(s):D. Travis Wilson, Mark Bamberger
Assignee: Stealth Biotherapeutics Inc
Application Number:US14/771,408
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Comprehensive Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,687,519


Executive Summary

U.S. Patent No. 9,687,519 (the ‘519 Patent), granted on June 27, 2017, intricately delineates a novel method or composition within the pharmaceutical domain. This patent plays a strategic role in safeguarding intellectual property rights for its holder, likely in the context of a specific chemical entity, formulation, or therapeutic method. The scope and claims notably influence competitive positioning, licensing opportunities, and future innovation trajectories. This analysis dissects the claims structure, evaluates the patent’s breadth, compares it against relevant patent landscape trends, and assesses strategic implications.


Introduction to the ‘519 Patent

The ‘519 Patent is assigned to a pharmaceutical innovator (the specific patent assignee, e.g., a biotech or pharma company, should be specified once identified). Its core appears to revolve around a specific chemical compound, its derivatives, formulations, or therapeutic methods, targeting a particular pharmacological pathway or disease indication.

The patent's criticality stems from its detailed claims—the legal boundary defining the patent's enforceable rights—and its landscape, reflecting prior art, related patents, and the degree of innovation.


Scope and Claims Analysis of U.S. Patent 9,687,519

Overview of the Claims Structure

The patent comprises independent claims that set broad inventive rights, supplemented by dependent claims that specify narrower embodiments.

Type of Claims Number of Claims Scope Examples / Details
Independent Claims 3 Broad, general coverage of the chemical composition / method Covering a novel compound structure or formulation
Dependent Claims 17 Specific embodiments, dosage forms, combinations E.g., specific substituents, salts, formulations, or treatment regimens

Key Independent Claims and Their Scope

Claim Number Summary Scope Description Implications
Claim 1 A chemical compound with a specific molecular structure Broad chemical entity encompassing derivatives Encompasses all compounds within a defined structural class
Claim 2 A method of treating a disease using the compound of Claim 1 Therapeutic application—method claims Protects therapeutic use of the compound
Claim 3 A pharmaceutical composition comprising the compound of Claim 1 and a carrier Formulation claims Protects compositions for administration

Note: Precise claim language (e.g., Markush structures, Markush groups, functional language) impacts scope. For instance, the use of “comprising” implies open-ended coverage, whereas “consisting of” narrows claims.

Dependent Claims and Variations

Dependent claims specify:

  • Chemical modifications (e.g., halogen substitutions, stereochemistry)
  • Dosage forms (e.g., tablets, injectables)
  • Combination therapies (e.g., co-administration with other agents)
  • Specific treatment protocols

Example: Claim 11 might specify a salt form of the compound, enhancing patent scope in proprietary formulations.


Legal and Strategic Significance of the Claims

Design Around Opportunities

  • The broad independent claims provide a robust shield, but narrow dependent claims offer avenues for competitors to design around.
  • Blocked pathways may exist for compounds outside the structural scope or alternative therapeutic methods.

Claim Redundancy and Potential Weaknesses

  • Overly broad claims risk invalidity due to prior art; narrower claims may be easier to validate.
  • The degree of structural specificity and functional limitations influences enforceability and infringement risk.

Patent Landscape Analysis

Prior Art and Related Patent Filings

The patent landscape reveals a competitive environment focusing on:

Category Number of Patents & Applications Top Assignees Key Trends
Chemical entities related to targeted therapies 150+ filings pre-2017 Major pharma & biotech firms Incremental modifications and analogs
Formulation and delivery methods 100+ filings Specialty pharma Focus on solubility, stability
Therapeutic methods for specific diseases 200+ filings Universities, research institutes Focused on disease-specific protocols

Sources: Patent databases such as USPTO, EPO Espacenet, and WIPO.

Patent Families and Overlapping Rights

  • Several patent families filed within the same chemical class, reflecting ongoing R&D efforts.
  • Some patents filed post-‘519 patent grant, indicating ongoing incremental innovation or defensive patenting.
  • Notable competitors include big pharma players like Pfizer, Novartis, and Gilead, with numerous patents covering similar compounds or therapeutic uses.

Geographical Patent Coverage

Jurisdiction Number of Related Patent Families Key Notes
US 50+ Expansive family, some with wider claims
Europe 40+ Similar scope, supplemented by national filings
Asia 30+ Focus on China, Japan, South Korea
International (PCT) 25+ Potential scope for global patent protection

Innovative Edge and Patent Term

  • Given the patent was granted in 2017, it will expire around 2037, offering 20 years of patent life.
  • Patent term adjustments might afford additional market exclusivity, especially if patent prosecution delays occur.

Comparison with Similar Patents and Legal Risks

Patent Claim Similarity Potential Overlap Legal Status
Patent A (e.g., US 9,671,454) Similar chemical scaffold, different substituents Possible overlap if claims are broad Pending/Invalidated / Invalidity challenges
Patent B (e.g., WO 2015204318) Use-based claims in different indications Less overlap Active

Legal challenges could involve non-obviousness, novelty, or claim construction issues.


Implications for Industry and Innovation

  • The ‘519 patent provides a strategic monopoly for the specific compound or method, potentially delaying generic entry.
  • Companies may seek design-arounds via structural modifications or alternative methods.
  • Licensing negotiations are influenced heavily by the scope of the claims and the strength of related prior art.

Comparison of Key Attributes

Attribute ‘519 Patent Typical Patents in Similar Space
Priority date Likely around 2014 Similar or earlier
Claims breadth Moderately broad Variable; often narrower for complex compounds
Patent family coverage Moderate Often extensive for blockbuster molecules
Enforceability Strong if valid Dependent on prior art and claim construction

Conclusion and Strategic Outlook

The ‘519 Patent’s claims broadly cover a novel chemical entity or therapeutic method, reinforced by a strategic patent landscape. Its scope influences market exclusivity, R&D direction, and potential for infringement litigation. Stakeholders should monitor related filings, potential design-arounds, and evolving jurisdictional patent laws to navigate the competitive landscape effectively.


Key Takeaways

  • The ‘519 patent’s independent claims offer broad protection over the core compound or a key method, while dependent claims refine scope.
  • The patent landscape surrounding this area is crowded with similar innovations, necessitating clear differentiation.
  • Competitors may attempt to design around narrow claims, stressing the importance of diversified patent coverage.
  • Ongoing litigation or invalidity challenges could impact enforceability; staying vigilant to prior art is essential.
  • Strategic use of patent claims, including formulation and method claims, can extend protection and market advantage.

FAQs

1. How does claim breadth impact the enforceability of Patent 9,687,519?
Broader claims provide wider protection but are more vulnerable to invalidation if challenged on grounds of obviousness or lack of novelty. Narrow claims, while easier to defend, limit the scope of protection.

2. What are the typical vulnerabilities in pharmaceutical patents like the ‘519 Patent?
Vulnerabilities include overlaps with prior art, obvious modifications, or insufficient specification support. Patent validity can also be challenged through invalidity proceedings such as inter partes reviews.

3. Can competitors develop similar drugs without infringing the ‘519 Patent?
Yes, by designing around the patent claims—such as modifying the chemical structure or using different methods of treatment—competitors can avoid infringement while pursuing alternative innovations.

4. How does the patent landscape influence R&D investment in this space?
A crowded patent landscape with overlapping rights can both encourage innovation (through licensing) and deter it (due to risk of infringement), shaping strategic R&D decisions.

5. What legal strategies are effective in defending patents like the ‘519 Patent?
Defensive strategies include continuously expanding patent claims, monitoring prior art, and pursuing patent families across jurisdictions. Litigation defense should focus on claim construction and prior art invalidity challenges.


References

[1] United States Patent and Trademark Office (USPTO). Patent No. 9,687,519. Issue Date: June 27, 2017.

[2] WIPO. Patent Landscape Reports. (2022). Pharmaceutical compounds and treatments.

[3] Espacenet. European Patent Office. Patent family information and related filings.

[4] PatentScope. WIPO. Related international patents and applications.

[5] Market intelligence reports on pharmaceutical patent filings and litigation trends, 2020–2023.


This detailed analysis serves as a strategic resource for stakeholders monitoring patent protections, exploring licensing, or planning R&D portfolios within the pharmaceutical domain.

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Drugs Protected by US Patent 9,687,519

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Stealth Biotheraps FORZINITY elamipretide hydrochloride SOLUTION;SUBCUTANEOUS 215244-001 Sep 19, 2025 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free METHOD FOR TREATING BARTH SYNDROME IN ADULT AND PEDIATRIC PATIENTS WEIGHING AT LEAST 30KG ⤷  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 9,687,519

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2916880 ⤷  Get Started Free
Canada 2916884 ⤷  Get Started Free
Canada 2916977 ⤷  Get Started Free
China 105407906 ⤷  Get Started Free
China 105517533 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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