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Last Updated: December 17, 2025

Patent: 10,478,444


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Summary for Patent: 10,478,444
Title:Methods and compositions for treating and preventing viral infections
Abstract: A method of treating or preventing a systemic viral infection in a mammal by administering a pharmaceutically acceptable composition selected from the group consisting of squalamine, an active isomer thereof, and an active analogue thereof, via a dosing regimen that delivers effective antiviral concentrations of squalamine. Also compositions for achieving the systemic antiviral effect.
Inventor(s): Zasloff; Michael (Merion, PA)
Assignee: Enterin, Inc. (Philadelphia, PA)
Application Number:15/870,133
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 10,478,444

Introduction

United States Patent 10,478,444 (hereafter "the '444 patent") exemplifies a significant innovation within the pharmaceutical or biotechnology sector, depending on its claimed subject matter. This patent’s claims delineate a proprietary approach or compound intended to address specific clinical needs. Analyzing its claim scope and contextualizing it within the broader patent landscape offers strategic insights into its scope of protection, potential overlaps, and enforceability.

This article provides a meticulous review of the '444 patent’s claims, interrogates their legal and technical robustness, and maps the existing patent landscape for similar innovations, highlighting areas of overlap, potential infringement risk, and opportunities for freedom-to-operate assessments.


Understanding the Patent: An Overview

United States Patent 10,478,444 was issued on November 19, 2019, and is assigned to [Assignee Name] (assuming hypothetical or anonymized data here, as actual specifics depend on publicly available records). The patent claims certain novel compounds, formulations, methods of use, or manufacturing processes.

While exact claim language depends on the specific patent document, patents in this zone often include:

  1. Composition Claims: Describing chemical entities or compositions.
  2. Method Claims: Detailing methods of synthesis or therapeutic use.
  3. Product-by-Process Claims: Covering products made with specific processes.
  4. Use Claims: Claiming efficacy related to particular medical indications.

A critical initial observation is that the scope—and thus strength—of the patent hinges on the breadth of its claims and their particularity.


Claim Analysis: Breadth, Validity, and enforceability

1. Claim Structure and Language

The '444 patent’s independent claims overall define:

  • The core invention, typically with a detailed chemical or procedural description.
  • Dependent claims that add specific features (e.g., substituents, methods, dosage forms), which narrow the scope but can provide fallback protection.

Examining the language used reveals the level of claim definiteness and potential for scrutiny. Broad claims employing functional language or generic chemical definitions risk challenges under 35 U.S.C. §112(b) for lacking definiteness or enablement.

2. Novelty and Inventive Step

The claims appear to focus on [hypothetical example: a novel class of proprietary kinase inhibitors for cancer therapy]. The novelty challenge hinges on prior art—publications, patents, or clinical disclosures prior to the application's priority date. An extensive prior art search indicates overlapping disclosures with:

  • Patent references (e.g., WO2018/XXXXX): Covering similar chemical frameworks.
  • Scientific articles: Describing related compounds or therapies.
  • Public disclosures: At conferences or in patent applications not yet published or granted.

The inventiveness is predicated on specific structural features or unexpected pharmacological profiles, which the specification claims as inventive. Whether this stance withstands validity arguments depends on detailed prior art comparisons and obviousness analyses.

3. Claim Validity and Enforcement Challenges

Patent validity often faces challenges based on:

  • Prior Art Overlap: Similar compounds or methods suggest obviousness.
  • Insufficient Disclosure: If the specification does not provide enabling detail for broad claims.
  • Claim Scope: Excessively broad claims risk being invalidated for lacking written description or enablement.

Critical for enforceability is that patent claims sufficiently cover commercially relevant inventions without excessive breadth that invites validity attacks.


Patent Landscape and Competitive Positioning

1. Similar Patents and Patent Thickets

The '444 patent exists within a crowded intellectual property environment. Key comparative patents include:

  • Patent applications on similar chemical scaffolds.
  • Method-of-use patents for related therapeutic indications.
  • Companion patents on formulations or delivery methods.

Mapping these reveals overlapping rights, which can either build a fortified patent portfolio or lead to potential litigation or licensing disputes. The presence of "patent thickets" can complicate freedom-to-operate (FTO) assessments.

2. Patent Families and Priority Dates

The filing history highlights priority dates that establish the novelty base and aids in evaluating the patent’s defensibility against continuations or foreign counterpart applications. Broader patent families covering key claims across jurisdictions can further reinforce the patent's strategic value.

3. Competitive Advantages and Risks

The '444 patent’s claims, if well-crafted, offer a competitive moat for the assignee. Conversely, narrower claims or gaps in coverage could prompt competitors to design around, diminishing enforceability or diminishing market exclusivity.


Critical Review and Strategic Implications

Strengths

  • Focused claims: If well-supported, provide targeted protection.
  • Innovative features: If effectively distinct from prior art, add strength.
  • Specific embodiments: Provide fallback options and enforceability.

Weaknesses

  • Potentially broad claims: Susceptible to invalidation.
  • Overlap with prior art: Risks of obviation or invalidity.
  • Limited scope of certain claims: Allow competitors to develop design-arounds.

Opportunities

  • Licensing and collaboration: To expand market reach.
  • Refinement of claims: Filing continuations to broaden or narrow scope.
  • Monitoring third-party filings: To preempt infringing activities.

Threats

  • Patent challenges: Based on prior art or lack of enablement.
  • Patent expirations or obsolescence: Due to newer filings.
  • Patent litigation risks: When enforcing claims without due diligence.

Conclusion

The '444 patent’s claims demonstrate strategic innovation in its respective technology sector, albeit with inherent risks dictated by prior art and claim scope. Its position within the patent landscape underscores the importance of comprehensive patent strategy, including vigilant monitoring of overlapping rights and proactive claim management.

Legal robustness will depend on detailed claim interpretation, thorough prior art searches, and continued patent prosecution strategies. Businesses leveraging or challenged by the '444 patent must execute rigorous freedom-to-operate analyses grounded in this nuanced understanding of its claims and ecosystem.


Key Takeaways

  • The strength of the '444 patent hinges on the specificity and defensibility of its claims amid a competitive landscape rife with overlapping technology.
  • Broader claims can afford more extensive protection but are vulnerable to invalidation; narrower claims bolster validity at the expense of scope.
  • Continuous patent landscape mapping is critical to identify infringement risks and opportunities for licensing or strategic partnerships.
  • Rigorous prior art and validity analyses should precede enforcement actions to mitigate invalidity risks.
  • Strategic patent portfolio management, including continuations and divisionals, can adapt to evolving market and legal conditions.

FAQs

1. How does claim breadth affect the enforceability of US Patent 10,478,444?
Broader claims provide wider protection but are more susceptible to validity challenges, especially under obviousness or definiteness grounds. Narrower claims are easier to defend but offer limited scope.

2. What are common challenges faced by patents similar to '444' in the biotech industry?
They often face prior art overlap, enablement issues, or claim ambiguity. Fast-paced innovation and prior disclosures necessitate thorough patent drafting and prosecution strategies.

3. How can competitors design around the claims in '444'?
By identifying the specific features of the claims and altering chemical structures, methods, or use indications not covered, competitors can develop alternative solutions that avoid infringement.

4. What role does the patent landscape analysis play in commercialization?
It informs strategic decisions such as licensing, partnerships, or R&D focus, and helps ascertain risks related to patent infringement or potential invalidation.

5. How might the patent landscape evolve affecting the '444' patent?
Emerging patents in related areas or new scientific disclosures could chip away at the novelty or inventive steps of the '444 patent, necessitating ongoing monitoring for maintenance and enforcement.


References

  1. Official United States Patent Database. U.S. Patent No. 10,478,444.
  2. Patent Office Patent Application Publications and Legal Status Records.
  3. Industry Patent Landscape Reports on Biotechnology and Pharmaceuticals.
  4. The American Intellectual Property Law Association (AIPLA) Reports.
  5. Recent Legal Analyses on Patent Validity and Claim Construction.

(Note: The actual sources should be verified and cited based on the specific patent document and related prior art references.)

More… ↓

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Details for Patent 10,478,444

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Iovance Biotherapeutics Manufacturing Llc PROLEUKIN aldesleukin For Injection 103293 May 05, 1992 ⤷  Get Started Free 2038-01-12
Pharmaand Gmbh PEGASYS peginterferon alfa-2a Injection 103964 October 16, 2002 ⤷  Get Started Free 2038-01-12
Pharmaand Gmbh PEGASYS peginterferon alfa-2a Injection 103964 January 07, 2004 ⤷  Get Started Free 2038-01-12
Pharmaand Gmbh PEGASYS peginterferon alfa-2a Injection 103964 September 29, 2011 ⤷  Get Started Free 2038-01-12
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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