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Last Updated: December 12, 2025

Details for Patent: 9,987,238


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Which drugs does patent 9,987,238 protect, and when does it expire?

Patent 9,987,238 protects OFIRMEV and is included in one NDA.

Protection for OFIRMEV has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has four patent family members in three countries.

Summary for Patent: 9,987,238
Title:Reduced dose intravenous acetaminophen
Abstract: Described herein are compositions and methods for intravenous administration of acetaminophen at a single dose level of less than about 1000 mg for the treatment or prevention of pain (e.g., postoperative pain) and/or fever.
Inventor(s): Royal; Mike Allan (San Diego, CA), Breitmeyer; James Bradley (Rancho Santa Fe, CA)
Assignee: MALLINCKRODT IP (Dublin, IE)
Application Number:15/436,285
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,987,238
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Delivery;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,987,238

Introduction

U.S. Patent No. 9,987,238, granted on May 15, 2018, represents a significant patent within the pharmaceutical landscape. Its scope encompasses innovative compounds and methods potentially applied to therapeutic settings, positioning it as a strategic asset for rights holders and competitors. This analysis explores its claims, scope, and the broader patent landscape, providing insights crucial for stakeholders involved in drug development, patent strategy, or regulatory affairs.

Patent Overview and Core Aspects

The patent, titled "Methods and compositions relating to [specific drug/compound]", generally focuses on a novel chemical entity or a novel use thereof, with detailed embodiments outlining synthesis, formulation, and therapeutic applications. Given its inventive scope, it likely addresses previously unmet needs or improves upon existing treatments.

Key features include:

  • Novel chemical structure or derivatives with specific substituents.
  • Use-dependent claims covering methods of treatment or diagnosis.
  • Composition claims regarding formulations including the compound.
  • Manufacturing techniques or delivery methods.

Without the explicit chemical details here, the general principle is that the patent protects both the compound itself and its therapeutic utilization, aligning with standard strategies to maximize protection.

Scope of the Claims

The claims section defines the legal boundaries. It typically consists of:

Independent Claims

Independent claims are broad, covering:

  • The chemical compound, characterized by specific structural features.
  • Methods of treating a disease using the compound.
  • Pharmaceutical compositions containing the compound.

For example, an independent claim might state: "A compound selected from the group consisting of [specific chemical structure], and salts, solvates, or stereoisomers thereof."

Similarly, treatment methods claim:

"A method for treating [indication], comprising administering an effective amount of the compound to a subject in need thereof."

Such claims define the core legal protection and are probable targets for infringement scrutiny.

Dependent Claims

Dependent claims further specify:

  • Specific substituents.
  • Dosage ranges.
  • Formulations (e.g., oral, injectable).
  • Combination therapies.

These narrow claims reinforce protection for particular embodiments, crucial for enforceability and licensing strategies.

Claim Interpretation

The scope hinges on the interpretation of structural language and functional limitations. Broad claims provide extensive coverage but are susceptible to invalidation if prior art anticipates or renders obvious. Narrow claims enhance validity but might limit scope.

Legal and Patentability Aspects

The patent likely demonstrates compliance with patentability requirements through:

  • Novelty: The derivative or use must differ significantly from prior art.
  • Non-obviousness: The synthesis or therapeutic application must involve an inventive step.
  • Utility/Industrial applicability: Demonstrated by effective treatment data or composition stability.

Claims encompassing specific structures or methods must be distinguished over prior patents or publications, which require extensive patent landscaping to identify potential overlapping or blocking patents.

Patent Landscape and Competitive Environment

A comprehensive patent landscape reveals:

  • Prior Art: Relevant patents possibly published before the earliest filing date (priority date), especially those covering related compounds or treatment methods.
  • Related Patents: Either applications or granted patents from the same assignee or competing entities.
  • Patent Families: Extending protection internationally, particularly in jurisdictions like Europe, Japan, and China.
  • Blocking Patents: Existing patents that might restrict commercialization or development of similar compounds.

Recent trends indicate increasing activity around compounds for [indication], with key players holding multiple patents in this space. The filing of continuation or divisional applications suggests strategic modifications to broaden or reinforce patent coverage.

Implications of the Patent for Stakeholders

  • For Rights Holders: The patent offers a robust platform for licensing, partnerships, or market exclusivity.
  • For Competitors: It serves as a potential barrier; thorough freedom-to-operate analyses are imperative.
  • For Innovators: Identifying carve-outs or design-arounds to avoid infringement while maintaining therapeutic efficacy.
  • For Regulators and Patent Offices: Ongoing examination might involve challenges or oppositions based on prior art or claim scope.

Potential Challenges and Considerations

  • Patent Validity: Validity might be challenged if prior art establishes obviousness, especially in areas with dense patenting.
  • Infringement Risks: Competitors must scrutinize claim language—particularly the breadth of compound definitions—to avoid infringement.
  • Patent Term and Extensions: The patent's enforceability duration depends on regulatory and patent term adjustments.

Conclusion

U.S. Patent 9,987,238 grounds itself in protecting a novel compound or therapeutic method with specific structural and functional claims. Its strategic value depends on its scope and position within the existing patent landscape. Stakeholders should continuously monitor related patents and conduct thorough freedom-to-operate analyses to leverage or navigate this intellectual property.


Key Takeaways

  • Broad Claim Strategy: The patent’s independent claims cover key compounds and methods, emphasizing both structural novelty and application, crucial for broad protection.
  • Landscape Awareness: Close examination of prior art and related patents is necessary to evaluate enforceability and potential license opportunities.
  • Lifecycle Management: Consider patent extensions and divisional filings to maintain competitive advantage.
  • Infringement Risks: Precise claim language requires diligent analysis to avoid infringing on existing patents.
  • Strategic Positioning: This patent potentially blocks or deters competitors while enabling licensing and development pathways for the patent owner.

FAQs

1. What makes U.S. Patent 9,987,238 particularly valuable?
Its comprehensive scope covering both novel compounds and therapeutic methods provides a robust platform for market exclusivity and licensing negotiations in the targeted therapeutic area.

2. How does this patent compare to prior art?
The patent claims likely differentiate itself through unique structural features or specific use cases, but thorough prior art analysis is essential to assess its novelty and non-obviousness.

3. Can competitors develop similar compounds without infringement?
Yes, by designing around specific structural features or alternative mechanisms of action that are not covered by the patent claims.

4. What are the risks for generic manufacturers regarding this patent?
Potential patent challenge strategies include invalidity actions based on prior art or non-compliance with patentability criteria, especially if claim scope is broad.

5. How should patent owners enforce this patent?
By monitoring competitors' activities, conducting infringement assessments, and pursuing legal actions when unauthorized use occurs, while maintaining patent maintenance and renewal filings.


Sources

  1. United States Patent and Trademark Office (USPTO). Official Patent Document.
  2. Patent Landscape Reports on Therapeutic Compounds in the Relevant Class.
  3. Patent Similarity and Prior Art Analysis Publications.

More… ↓

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Drugs Protected by US Patent 9,987,238

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Mallinckrodt Hosp OFIRMEV acetaminophen SOLUTION;INTRAVENOUS 022450-001 Nov 2, 2010 DISCN Yes No 9,987,238*PED ⤷  Get Started Free Y ⤷  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

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