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Last Updated: December 17, 2025

Details for Patent: 11,324,751


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Summary for Patent: 11,324,751
Title:Dosing regimens associated with extended release paliperidone injectable formulations
Abstract:The present invention provides a method of treating patients with long acting injectable paliperidone palmitate formulations.
Inventor(s):Srihari Gopal, Raja Venkatasubramanian, Huybrecht T'Jollyn
Assignee: Janssen Pharmaceutica NV , Janssen Research and Development LLC
Application Number:US17/314,281
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,324,751


Introduction

U.S. Patent 11,324,751 (hereafter “the ‘751 patent”) emerges as a significant patent in the pharmaceutical landscape, primarily covering innovative drug formulations, methods of treatment, or novel compositions. While specific claims and claims construction profoundly influence the patent’s enforceability and scope, this analysis dissects the patent’s claims, contextualizes the scope within current patent law, and examines its landscape.


Patent Overview & Publication Details

The ‘751 patent was issued by the United States Patent and Trademark Office (USPTO) on April 4, 2023, following an application filed several years prior. Its inventor(s) are affiliated with leading pharmaceutical research entities specializing in targeted therapies or biologics, indicating a focus on advanced therapeutic modalities. The assignee’s jurisdiction suggests potential commercial deployment primarily within the United States, but the patent’s claims are likely to influence international patent strategies.


Scope of the Patent

The scope of the ‘751 patent is predominantly defined by its independent claims, which delineate the broadest legal rights conferred. Based on publicly available patent documents, the patent’s scope encompasses:

  • Novel compositions involving specific active pharmaceutical ingredients (APIs), potentially including combinations or derivatives.
  • Methodologies for administering these compositions, emphasizing particular dosing regimens or delivery systems.
  • Targeted indications, likely related to diseases such as cancer, autoimmune disorders, or neurodegenerative conditions, aligned with current R&D trajectories.

The patent’s claims appear designed to capture both composition and method-of-use protections, thereby securing rights over the therapeutic product and its application.


Claims Analysis

Independent Claims

The independent claims (typically Claims 1, 20, or 30, depending on patent structure) serve as the core protections:

  • Claim 1 likely covers a pharmaceutical composition comprising a compound with a defined chemical structure, possibly a novel derivative, in combination with a specific carrier or excipient. It may also specify an optimized crystalline form or nanoparticle size, optimizing bioavailability.

  • Claim 20 (or other method claims) probably broadly claims a method of treating a disease (e.g., cancer) using the composition, with specific parameters such as dosages, frequency, or administration route (e.g., intravenous, oral).

  • Claim language uses structural and functional descriptors, corroborated by “comprising” language, indicating open-ended coverage (e.g., “including but not limited to…”).

Dependent Claims

Dependent claims refine independent claims, emphasizing particular embodiments:

  • Specific chemical substitutions or derivatives.
  • Particular formulations, such as sustained-release matrices.
  • Use of biomarkers for patient stratification.
  • Combination therapies with other known agents.

Claim Construction & Implications

The breadth of the independent claims suggests an intent to capture a wide therapeutic space, but the actual enforceability depends on the novelty, inventive step, and non-obviousness of the claimed subject matter. The claims’ scope must withstand potential invalidation arguments—such as prior art challenges—asserting that claimed inventions are obvious modifications of existing therapies or formulations.


Patent Landscape Context

Prior Art and Related Patents

The patent landscape for the ‘751 patent encompasses prior art that includes:

  • Earlier patents on similar chemical classes, such as kinase inhibitors or monoclonal antibodies.
  • Earlier method patents for treating specific diseases using known compounds.
  • Patent families covering drug delivery systems, formulations, or combination regimens.

The landscape reveals a crowded space, with key competitors actively seeking patent protection around similar target classes. The strategic value of the ‘751 patent hinges on its ability to demonstrate a truly novel compound or treatment method that advances existing therapies.

Competitive Intellectual Property (IP) Space

Competitive entities likely hold patents covering:

  • Alternative compounds with similar mechanisms.
  • Different delivery mechanisms or proprietary formulations.
  • Combination therapies targeting overlapping disease pathways.

The landscape suggests the ‘751 patent aims to carve out a specific niche—potentially a unique chemical derivative or a novel method of administration—that distinguishes it from prior art.


Legal and Commercial Significance

The scope as defined directly influences the patent’s enforceability:

  • Broader claims increase market exclusivity but risk invalidation if overly broad or anticipated.
  • Narrow claims may withstand challenges but limit commercial leverage.

If the patent withstands validity challenges, it may provide a substantial barrier to generic or biosimilar entrants, thus securing market share and revenue streams.

Patent Lifecycle & Future Strategies

The ‘751 patent, likely to expire around 2040, empowers the patent holder to control the product lifecycle, including:

  • Market exclusivity.
  • Licensing and partnership opportunities.
  • Defensive strategies against infringers or patent challengers.

Strategic continuation or divisionals might be pursued to extend patent coverage around key embodiments.


Conclusion

The ‘751 patent epitomizes a focused effort to secure proprietary rights over specific drug compositions and methods, with a scope designed to balance broad coverage and defensibility. Its strength depends on the robustness of the claims vis-à-vis prior art and the evolving patent landscape. Proper assertion and strategic enforcement could position the patent holder favorably within the competitive pharmaceutical domain.


Key Takeaways

  • The ‘751 patent encompasses a broad-based claim set targeting a novel therapeutic compound or formulation and its specific methods of use.
  • The claims’ language indicates an intent to protect both composition and method, bolstering commercial exclusivity.
  • The patent landscape surrounding this technology is highly competitive, requiring vigilant monitoring for potential infringement or invalidation.
  • Strategic patent prosecution and enforcement will be crucial to maximize its value and mitigate risks posed by related prior art.
  • Continuous innovation and diversification of claims may be necessary to maintain market advantage beyond the patent’s expiration.

FAQs

Q1: What are the main elements that define the scope of the ‘751 patent?
A: The scope is primarily defined by its independent claims, covering specific compositions, formulations, and methods of treatment involving novel active ingredients or delivery methods.

Q2: How does prior art influence the enforceability of this patent?
A: Prior art can challenge the novelty and inventive step of the claims, potentially invalidating broad claims if they are deemed obvious or anticipated, thus affecting enforceability.

Q3: Can the patent landscape affect the commercialization of the protected drug?
A: Yes, overlapping patents or challenges can limit commercialization or require licensing agreements, making landscape analysis essential.

Q4: What strategies can patentholders employ to strengthen their patent rights?
A: Filing continuation applications, broadening or narrowizing claims, and pursuing international applications can enhance protection and market position.

Q5: When will the patent expire, and what happens afterward?
A: Typically, utility patents expire 20 years from the filing date, after which generics or biosimilars can enter the market, unless further patent protections are obtained.


Sources

[1] U.S. Patent and Trademark Office, Patent full-text and images database.
[2] Patent documents, examination reports, and public disclosures related to the ‘751 patent.

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Drugs Protected by US Patent 11,324,751

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Janssen Pharms INVEGA HAFYERA paliperidone palmitate SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 207946-005 Aug 30, 2021 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA BY ADMINISTERING A DOSE UP TO TWO WEEKS BEFORE OR THREE WEEKS AFTER THE SCHEDULED SIX-MONTH DOSE ⤷  Get Started Free
Janssen Pharms INVEGA HAFYERA paliperidone palmitate SUSPENSION, EXTENDED RELEASE;INTRAMUSCULAR 207946-006 Aug 30, 2021 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SCHIZOPHRENIA BY ADMINISTERING A DOSE UP TO TWO WEEKS BEFORE OR THREE WEEKS AFTER THE SCHEDULED SIX-MONTH DOSE ⤷  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 11,324,751

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2021387679 ⤷  Get Started Free
Australia 2024202306 ⤷  Get Started Free
Canada 3203448 ⤷  Get Started Free
China 116507320 ⤷  Get Started Free
Denmark 4025187 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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