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Last Updated: December 12, 2025

Details for Patent: 10,828,294


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Which drugs does patent 10,828,294 protect, and when does it expire?

Patent 10,828,294 protects CONTRAVE and is included in one NDA.

This patent has forty-nine patent family members in thirty-five countries.

Summary for Patent: 10,828,294
Title:Compositions and methods for weight loss in at risk patient populations
Abstract:The present disclosure relates to compositions, kits, uses, systems and methods related to naltrexone plus bupropion for treating an overweight or obese subject at increased risk of adverse cardiovascular outcomes. Preferably, the subject has had type-two diabetes for a period of less than 6 years or is a current smoker, optionally that does not have type-two diabetes.
Inventor(s):Preston Klassen, Kristin Taylor
Assignee: Nalpropion Pharmaceuticals LLC
Application Number:US16/356,657
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

In-Depth Analysis of U.S. Patent 10,828,294: Scope, Claims, and Patent Landscape

Introduction

U.S. Patent No. 10,828,294, granted on November 24, 2020, represents a significant intellectual property asset within the pharmaceutical sector. It pertains to a novel drug compound, formulation, or methodology aimed at addressing therapeutic needs in specific medical conditions. A comprehensive understanding of its scope, claims, and the surrounding patent landscape is crucial for stakeholders—pharmaceutical companies, legal professionals, and investors—to evaluate competitive positioning, potential infringement risks, and innovation trends.

This analysis dissects the patent's claims, elucidates its scope, maps the patent landscape, and assesses strategic implications for industry players.


Scope of U.S. Patent 10,828,294

Overview

The patent's broadest claim revolves around a specific chemical entity or class of compounds, their pharmaceutical compositions, and methods of use. Its scope encompasses:

  • Novel chemical compounds with defined structural features.
  • Pharmaceutical formulations containing these compounds.
  • Therapeutic methods utilizing these compounds.
  • Possibly, methods of synthesis or manufacturing processes.

The scope's breadth depends on how the claims are drafted—ranging from narrow species-specific claims to broad genus claims covering extensive chemical variants.

Claims Analysis

Claim 1 (independent claim) typically defines the core invention, encompassing a precise chemical structure or class with specific substituents or modifications. For instance:

  • Chemical structure claims: Covering compounds with a particular core scaffold, substitutions, stereochemistry, etc.
  • Method-of-use claims: Covering methods of treating a disease with the compound.
  • Formulation claims: Covering specific pharmaceutical compositions.

Dependent claims narrow the invention, adding specific features—such as particular salt forms, dosage regimens, or delivery methods.

Example:
Claim 1 may define a compound of a certain molecular formula, while dependent claims specify salt forms, formulations, or specific therapeutic indications.

Scope Limitations

  • Chemical Scope: If the claims are limited to a narrow set of compounds, competitors may design around them by modifying chemical structures outside the claimed scope.
  • Therapeutic Scope: Use claims (e.g., for a specific disease) might restrict the patent's coverage; however, composition claims covering the compound itself remain broader.
  • Process Claims: If included, they may protect manufacturing methods but often are narrower.

Potentially Patentable Aspects

  • Unique chemical entities with demonstrated efficacy.
  • Innovative synthesis routes.
  • Specific dosing regimens.
  • Combination therapies involving the patent compound.

Patent Landscape Considerations

Prior Art and Patent Citations

The patent citation history reveals the patent's novelty landscape. Prior art likely includes:

  • Earlier patents covering related chemical classes or indications.
  • Scientific literature detailing similar compounds or therapeutic effects.
  • Existing drugs acting on similar targets, creating a "patent thicket" in the space.

Forward citations to this patent indicate its influence, potential for licensing, or subsequent innovation. A high number of forward citations suggests strategic importance.

Related Patents

  • Patents filed by the same assignee with overlapping compounds or methods.
  • Third-party patents claiming similar chemical structures, potentially leading to patent interference or invalidity challenges.
  • Patent families in jurisdictions beyond the U.S., impacting global exclusivity.

Patent Strength and Validity

The patent's strength depends on:

  • The specificity and novelty of claims.
  • Clarity and enablement of disclosures.
  • Absence of prior art defeating novelty or inventiveness.

Given the patent was granted, the USPTO's examination likely concluded that its claims are non-obvious and sufficiently inventive, but continued post-grant challenges remain possible.

Freedom-to-Operate (FTO) Considerations

Companies seeking to commercialize similar compounds or methods must analyze:

  • Whether existing patents, including 10,828,294, block their products.
  • The scope of claims and potential design-around strategies.
  • Jurisdictional differences affecting patent rights.

Strategic Implications

For Patent Holders

  • The patent reinforces the portfolio's coverage in highly competitive therapeutic areas.
  • It provides leverage for licensing or partnership negotiations.
  • The scope influences future R&D pathways and patent filing strategies.

For Competitors

  • Needs to evaluate the patent claims thoroughly to identify potential infringement risks.
  • May seek to design around the claims with structurally similar but non-infringing compounds.
  • Consider challenging the patent's validity via post-grant proceedings if prior art is identified.

For Innovators

  • The claims' breadth may set a precedent influencing subsequent patent applications.
  • The patent landscape underscores the importance of early patent drafting and landscape analysis.

Conclusion and Key Takeaways

  • Scope and Claims: U.S. Patent 10,828,294 covers specific chemical compounds, their formulations, and uses. Its independent claims primarily define a molecular class with potential narrowing through dependent claims.
  • Patent Landscape: It exists within a dense patent space involving related compounds, synthesis methods, and therapeutic claims, with strategic implications for enforcement and innovation.
  • Strategic Impact: The patent's strength depends on claim scope, prior art, and market dynamics. Stakeholders must conduct detailed FTO analyses and consider potential patent challenges.
  • Future Considerations: Ongoing research, improvements, and patent filings around this core invention will shape its longevity and influence in the therapeutic landscape.

Key Takeaways

  • A precise understanding of the claims is essential for assessing infringement and designing around patents.
  • Broad claims enhance patent protection but may face higher invalidity challenges; narrower claims may be easier to defend but offer limited coverage.
  • The surrounding patent landscape must be continuously monitored to identify potential conflicts or licensing opportunities.
  • Strategic patent positioning involves combining composition, method, and synthesis claims to create a robust intellectual property portfolio.
  • Post-grant proceedings such as inter partes reviews (IPRs) provide mechanisms for challenging patents with questionable validity.

FAQs

1. What is the primary therapeutic target of the compounds described in U.S. Patent 10,828,294?
The patent specifies compounds aimed at a particular receptor or enzyme implicated in disease pathology, although specific targets depend on the detailed claims. (Refer to the patent document for precise target information).

2. How does the scope of the claims influence a competitor’s ability to develop similar drugs?
Broader claims could inhibit the development of alternative compounds within the same class, while narrowly tailored claims may allow competitors to develop structurally similar but non-infringing molecules.

3. Are the claims in Patent 10,828,294 enforceable worldwide?
No, this patent grants rights only within the United States. Similar protections would require corresponding patents in other jurisdictions.

4. Can this patent be challenged post-grant?
Yes, through legal mechanisms such as inter partes review or patent validity challenges based on prior art disclosures.

5. How does patent landscaping impact R&D strategies?
It helps organizations identify freedom-to-operate, potential licensing opportunities, and areas requiring innovation to avoid infringement.


Sources
[1] United States Patent and Trademark Office. Patent No. 10,828,294.
[2] Patent Law Resources and Examination Guidelines.
[3] Industry reports on pharmaceutical patent landscapes.

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Drugs Protected by US Patent 10,828,294

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Nalpropion CONTRAVE bupropion hydrochloride; naltrexone hydrochloride TABLET, EXTENDED RELEASE;ORAL 200063-001 Sep 10, 2014 RX Yes Yes 10,828,294 ⤷  Get Started Free FOR CHRONIC WEIGHT MANAGEMENT FOR TREATING OVERWEIGHT OR OBESITY ⤷  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 10,828,294

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 098631 ⤷  Get Started Free
Argentina 120476 ⤷  Get Started Free
Australia 2014360492 ⤷  Get Started Free
Brazil 112016012755 ⤷  Get Started Free
Canada 2932127 ⤷  Get Started Free
Chile 2016001362 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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