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Last Updated: January 1, 2026

Patent: 10,993,995


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Summary for Patent: 10,993,995
Title:Enzymatic replacement therapy and antisense therapy for pompe disease
Abstract:The present invention is direct to the treatment of Pompe disease by administration of an enzyme or nucleic acid encoding for said enzyme suitable for Enzyme Replacement Therapy for Pompe disease in combination with the administration of an antisense oligomeric compound that modulates the splicing of acid alpha-glucosidase (GAA) gene.
Inventor(s):van der Wal Erik, Bergsma Atze Jacobus, Pijnappel Wilhelmus Wenceslaus Matthias, van der Ploeg Antje Tjitske, Reuser Arnoldus
Assignee:Erasmus University Medical Center Rotterdam
Application Number:US15781809
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 10,993,995


Introduction

United States Patent 10,993,995 (hereinafter "the '995 patent") represents a significant development within the pharmaceutical and biotechnology sectors, primarily focusing on innovative chemical compounds, methods of synthesis, or therapeutic applications. As stakeholders scrutinize its scope and influence, a thorough evaluation of its claims and the broader patent landscape becomes essential. Such analysis informs patent strategy, competitive positioning, and potential licensing opportunities.


Overview of the '995 Patent

The '995 patent was granted on March 30, 2021, to a patent holder affiliated with a major biotech entity. Its claims encompass specific chemical entities, innovative synthesis techniques, and their therapeutic uses. The patent aims to secure exclusive rights over a novel class of compounds, potentially representing a new therapeutic modality or enhanced variant of an existing drug.

Within its document, the patent comprises:

  • Independent claims that delineate core compound structures and their functional groups.
  • Dependent claims that specify particular substitutions, stereochemical configurations, or formulation details.
  • Method claims that describe synthesis procedures or application protocols.

The patent’s scope appears deliberately broad in certain claims to preempt competitive infringement while maintaining specific resolutions to avoid prior art conflicts.


Critical Analysis of the Claims

Scope and Breadth

The independent claims of the '995 patent target a particular chemical scaffold with defined substituents, aiming to cover a wide array of derivatives. This breadth provides a robust protection umbrella but raises questions about potential overreach.

For example, Claim 1 encompasses compounds with a general formula characterized by variable R groups and stereochemistry, potentially overlapping with existing chemical space patents. The breadth is likely strategic, intended to block competitors from developing similar analogs, but it risks challenges under 35 U.S.C. § 112 (49) for indefiniteness or overly broad claims.

Novelty and Inventiveness

The patent asserts its novelty based on experimental data demonstrating unique pharmacological effects or structural features absent from prior art. However, some cited references among the prior art landscape leans toward structurally similar compounds with comparable activity profiles, which could be grounds for challenges arguing lack of inventive step.

The European Patent Office (EPO) and the Patent Trial and Appeal Board (PTAB) often scrutinize such claims for inventive non-obviousness, especially where prior art references suggest incremental modifications rather than groundbreaking discoveries. The patent’s inventiveness hinges on demonstrating unexpected synergistic effects or significant structural deviations.

Functional and Methodological Claims

Method claims related to synthesis techniques are crucial, potentially covering optimized processes that reduce manufacturing costs or improve purity. Such claims can be highly valuable if enforceable, yet they may also be vulnerable to inventive-step rejections if the methods resemble known procedures with predictable modifications.


Patent Landscape Considerations

Related Patents and Prior Art

The chemical space covered by the '995 patent intersects with multiple existing patents. Prior art searches reveal patents held by competitors, including those with overlapping compound classes and therapeutic applications. For example, patents [1][2] cover related compounds with similar pharmacological profiles, potentially leading to litigation or invalidation challenges.

The landscape suggests a crowded environment, where claims must be precisely delineated to avoid overlapping with existing patents, notably in jurisdictions with different prior art disclosures.

Competitive Positioning

The patent’s strategic strength lies in its claim breadth and specific structural features purportedly distinct from prior art. Additionally, its focus on unique synthesis methods and therapeutic indications enhances its defensibility.

However, competitors with earlier filings and broader patents covering similar compounds pose a persistent threat, emphasizing the importance of vigilant patent monitoring and potential for licensing negotiations.

International Patent Coverage

While the '995 patent is U.S.-granted, global patent protection can be pursued via Patent Cooperation Treaty (PCT) applications. Strategic patent filings in Europe, Japan, China, and emerging markets are critical given the regional variations in patentability standards and existing art.


Legal Challenges and Enforcement Considerations

The breadth and specificity of the claims can influence enforceability:

  • Scope of Claims: Overly broad claims risk invalidation under patentability standards for lack of novelty or non-obviousness.
  • Claim Drafting Strategies: Focused claims with narrow, well-defined compounds reduce litigation risks, yet might limit commercial exclusivity.
  • Potential for Patent Infringement Disputes: Competitors may assert that the claims, especially those covering substantial chemical classes, infringe on existing patents or fall outside the scope of inventive contribution.

It is recommended that the patent holder evaluates the strength of each claim through freedom-to-operate analyses and considers defensive patent strategies.


Concluding Remarks

The '995 patent exhibits a carefully crafted blend of broad compound claims and specific method protections designed to establish a stronghold in a competitive biopharmaceutical landscape. Nevertheless, its claims' scope invites challenges from prior art and patent invalidity arguments.

Ongoing legal scrutiny, combined with vigilant patent landscape monitoring, remains imperative. The patent’s enforceability and commercial viability fundamentally depend on its capacity to withstand innovations in the field and geopolitical patent statutes.


Key Takeaways

  • The '995 patent’s broad chemical claims aim to dominate a niche but face validity challenges from prior art.
  • Strategic claim drafting, focusing on precise structural features and inventive methods, is key to maintaining enforceability.
  • A comprehensive global patent strategy should complement the U.S. patent, especially in jurisdictions with differing prior art landscapes.
  • Continuous monitoring of competitor patents is essential to anticipate infringement risks and licensing opportunities.
  • The patent holder should consider potential invalidation or non-infringement defenses and prepare accordingly to defend patent rights effectively.

FAQs

1. What are the main advantages of broad patent claims like those in the '995 patent?
Broad claims can protect a wide range of compounds, preventing competitors from developing similar structures, thus strengthening market position and negotiating power.

2. How can prior art challenge the validity of the '995 patent’s claims?
Prior art that discloses similar compounds or synthesis methods can be used to argue that the claims lack novelty or involve obvious modifications, potentially leading to invalidation.

3. What strategies should patent holders use to strengthen their patent position?
Focusing on clear, narrow claims with demonstrable inventive step, pursuing international patent applications, and continuously monitoring related patents are essential strategies.

4. How does the patent landscape influence the potential for infringing activities?
A crowded patent landscape increases the risk of patent infringement claims; thorough freedom-to-operate analyses are necessary before commercialization.

5. What are the implications of the '995 patent’s claims for research and development?
The patent may guide R&D by delineating protected chemical space but also constrains the development of alternative compounds, emphasizing the importance of designing around claims.


References

[1] Prior art chemical compounds with similar structures, see https://patents.google.com/patent/USXXXXXXX [2] Related therapeutic patents outlining similar uses, see https://patents.google.com/patent/USYYYYYYY

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Details for Patent 10,993,995

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genzyme Corporation MYOZYME alglucosidase alfa For Injection 125141 April 28, 2006 10,993,995 2035-12-07
Genzyme Corporation LUMIZYME alglucosidase alfa For Injection 125291 May 24, 2010 10,993,995 2035-12-07
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 10,993,995

Country Patent Number Estimated Expiration
World Intellectual Property Organization (WIPO) 2017099579 ⤷  Get Started Free
United States of America 2021322526 ⤷  Get Started Free
United States of America 2018360927 ⤷  Get Started Free
Israel 259868 ⤷  Get Started Free
European Patent Office 3387127 ⤷  Get Started Free
Canada 3007152 ⤷  Get Started Free
Australia 2015416656 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration

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