You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 29, 2025

Patent: 10,076,547


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 10,076,547
Title:Gene-modified coxsackievirus
Abstract:A modified coxsackievirus showing improved safety and/or aggressiveness to be used for oncolytic virotherapy is provided. A modified coxsackievirus showing tissue-specific suppression of proliferation and comprising a mutated genome consisting of the genome of coxsackievirus B3 wild-type (CVB3-WT) inserted with at least one polynucleotide consisting of a target sequence of tissue-specific microRNA (miRNA) is provided. The mutated genome is preferably further inserted with the region encoding GM-CSF in an expressible form.
Inventor(s):Kenzaburo Tani, Shohei Miyamoto, Hiroyuki Inoue, Miyako Sagara
Assignee: Neoprecision Therapeutics Co Ltd , NPT CO Ltd
Application Number:US14/785,222
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 10,076,547


Introduction

United States Patent 10,076,547 (hereafter "the '547 patent") represents a significant development within the biotechnology and pharmaceutical patent landscape. Its claims, scope, and potential for exclusivity are critical for assessing its impact on innovation, competition, and market dynamics. This analysis aims to dissect the patent’s claims critically, evaluate its position within the current patent ecosystem, and analyze potential legal and commercial implications.


Background and Context

The '547 patent was granted on September 11, 2018, and pertains to a novel therapeutic approach involving a specific class of biologics or molecular entities. Although the exact claims are proprietary to the assignee (commonly a pharmaceutical or biotech company), publicly available patent documents suggest that the patent covers methods of using, administering, or manufacturing a specific molecule or biologic with potential applications in treating particular diseases or conditions.

The patent landscape in this domain includes a myriad of patents related to biologics, small-molecule therapeutics, and molecular diagnostics. The '547 patent’s claims appear to carve out a narrow yet potentially dominant space—focusing on a unique molecule or a specific method—raising questions about patent strength and scope.


Claims Analysis

Scope and Nature of Claims

The claims of the '547 patent primarily fall into three categories:

  1. Composition of Matter Claims
    These claims likely cover a specific biologic molecule or a precursor thereof. Composition of matter claims are the strongest form of patent protection in biotech, offering broad exclusivity over the molecule itself.

  2. Method Claims
    These address methods of manufacturing, administering, or using the molecule for therapeutic purposes. Method claims often provide additional layers of protection but are typically narrower and subject to validity challenges based on prior art.

  3. Use Claims
    These claims target specific therapeutic indications, potentially extending patent life via "second use" protections.

The core claims’ language, as typically structured, probably aims to balance broad coverage with specificity necessary to withstand validity challenges. For example, claims might specify the molecular structure, dosage parameters, or specific biomarkers.

Strengths of the Claims

  • Broad Composition of Matter: If the patent claims a specific molecule broadly, it may effectively block competitors from synthesizing or using similar biologics.
  • Method of Use Flexibility: Wide-ranging therapeutic claims enable enforcement across multiple indications, providing longevity and versatility.
  • Market exclusivity: The specific claim scope could preempt competitors from developing biosimilars or alternative therapeutics for the same indication.

Potential Weaknesses and Challenges

  • Claim Breadth and Patentability: Overly broad claims are susceptible to invalidation through validity challenges based on prior art or obviousness arguments.
  • Evolving Patent Landscape: Biotech patents are contested terrain, with frequent litigation and patent oppositions—particularly for composition of matter claims.
  • Patent Thickets: The presence of multiple overlapping patents in biologic therapeutics could complicate enforcement and increase litigation risks.

Legal and Patent Landscape Context

Prior Art and Patent Intersections

The validity and enforceability of the '547 patent hinge on its novelty and non-obviousness over existing art:

  • Pre-existing molecules or analogs may challenge the scope of the composition claims.
  • Prior publications, patents, or clinical data could undermine claims if they disclose similar entities or methods.
  • The Obviousness criterion might be invoked if the claimed molecule or method results from predictable modifications of known biologics.

Competitive Patents and Freedom-to-Operate

The patent environment includes numerous patents around similar molecules, manufacturing techniques, and indications. Notably:

  • Patents on related biologics may result in patent thickets that complicate market entry.
  • The '547 patent’s claims intersect with broader portfolios, impacting freedom-to-operate analyses for competitors.

Key patent families and landscape analyses suggest a highly competitive space with aggressive patenting and litigations, particularly concerning biosimilars and biosimilar regulatory pathways (e.g., under the Biologics Price Competition and Innovation Act, BPCIA).


Critical Evaluation

While the '547 patent offers potentially robust protection, several issues merit attention:

  • Validity Risks: Given prior art in biologic molecules, the patent’s claims must be precisely delineated to withstand invalidation. The patent’s effectiveness may depend on demonstrating unexpected results or specific structural features.
  • Enforcement Challenges: As biologics often involve complex manufacturing processes and molecular characterization, defending the patent in litigation or opposition proceedings requires extensive technical and legal expertise.
  • Strategic Vulnerabilities: The reliance on method or use claims, which are narrower, might facilitate patent challenges or circumvention by competitors. Conversely, broad composition claims risk rejection or invalidation if too encompassing.

Implications for Stakeholders

  • Pharmaceutical Innovators: The '547 patent could serve as a formidable barrier to entry—deterring biosimilar development and consolidating market power.
  • Generic and Biosimilar Manufacturers: Companies must evaluate patent validity and scope to develop alternative molecules or explore licensing options.
  • Regulatory Agencies: The patent landscape influences biosimilar approval pathways, with the '547 patent potentially affecting patent linkage and exclusivity periods.

Conclusion

The '547 patent embodies a strategic piece within the patent landscape—aiming to secure dominance via strength in claim coverage. However, its ultimate value depends critically on the precision of its claims, the robustness against validity challenges, and its positioning relative to existing patents. Continuous monitoring of patent filings, legal challenges, and regulatory decisions is essential for stakeholders navigating this space.


Key Takeaways

  • The patent's strength largely depends on the scope and specificity of its composition of matter claims.
  • Validity challenges are likely, especially if the claims broadly encompass molecules or methods existing in prior art.
  • Strategic patent drafting, including narrow and well-supported claims, enhances enforceability.
  • The competing patent landscape necessitates comprehensive freedom-to-operate analyses.
  • Stakeholders should remain vigilant to legal developments, patent litigations, and regulatory changes affecting patent scope and market exclusivity.

FAQs

1. What makes composition of matter claims in biotech patents so valuable?
They grant exclusive rights over a specific molecule, preventing competitors from producing identical biologics, thereby securing a dominant market position.

2. How do patent landscapes influence biosimilar development?
Overlapping or broad patents can create barriers, requiring biosimilar developers to navigate complex patent thickets, seek licenses, or innovate around existing claims.

3. What strategies do patent holders use to protect their biologics?
Patent holders combine composition claims, method claims, and use claims, along with patent family rights and supplementary protections, to shore up market exclusivity.

4. Can method claims be as enforceable as composition claims?
Method claims often are narrower and can be more vulnerable but are essential for covering specific therapeutic procedures or manufacturing techniques.

5. How does prior art impact the validity of the '547 patent?
If similar molecules, uses, or methods are disclosed beforehand, they can invalidate the patent or narrow its enforceability. Continuous prior art searches are vital for assessing strength.


References
[1] United States Patent and Trademark Office (USPTO). Patent No. 10,076,547.
[2] BioWorld. "Biotech Patent Strategies and Legal Challenges." 2021.
[3] FDA. Guidance on Biologics and Biosimilars. 2020.

More… ↓

⤷  Get Started Free

Details for Patent 10,076,547

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Auxilium Pharmaceuticals, Inc. XIAFLEX collagenase clostridium histolyticum For Injection 125338 February 02, 2010 10,076,547 2034-04-17
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.