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Last Updated: December 15, 2025

Details for Patent: 8,829,054


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Summary for Patent: 8,829,054
Title:Ready-to-use co-solvents pharmaceutical composition in modified flexible plastic container
Abstract:A ready-to-use injectable, co-solvents (ternary mixture) pharmaceutical composition for the treatment of cardiac conditions and diagnosis applications, comprising methyl-3-[4-(2-hydroxy-3-isopropylamino)propoxy]phenylpropionate hydrochloride (Esmolol hydrochloride), a buffering agent, ethanol and propylene glycol. The ready-to-use injectable, co-solvents (ternary mixture) pharmaceutical composition is capable of being stored in a modified flexible plastic container that may be heat-sterilized without deformation and/or without having the integrity of the closure system being compromised. A method for the manufacture of the ready-to-use injectable, co-solvents (ternary mixture) pharmaceutical composition is also disclosed.
Inventor(s):George Owoo, Erica Castagna
Assignee:HQ Specialty Pharma Corp
Application Number:US13/973,003
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,829,054
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,829,054

Introduction

United States Patent 8,829,054 (hereafter "the '054 patent") pertains to a novel pharmaceutical composition or method, offering potentially significant advantages in its therapeutic application. This analysis aims to elucidate the scope of the patent's claims, the comprehensive landscape within which it exists, and the implications it presents for stakeholders in the biopharmaceutical and intellectual property sectors.


1. Overview of the '054 Patent

The '054 patent was granted by the United States Patent and Trademark Office (USPTO) in September 2014, with inventors assigned to a leading pharmaceutical entity. The patent’s title and abstract suggest it centers around a specific drug formulation or a method of administering a known therapeutic agent with novel features. Its core invention likely improves drug efficacy, reduces side effects, or enhances delivery mechanisms.

Key Aspects:

  • Grant Date: September 2014.
  • Inventors/Assignee: Typically a major pharmaceutical company (assumed for analysis, precise details can be verified through USPTO records).
  • Field: Likely relates to therapeutic agents, drug delivery systems, or formulations.

2. Scope of the Patent Claims

The claims define the legal boundaries of the patent's protection. Analyzing the '054 patent involves categorizing the claims into independent and dependent claims and understanding their scope and limitations.

2.1 Independent Claims

Independent claims are broad, establishing the fundamental aspects of the invention. For the '054 patent, these likely cover:

  • A pharmaceutical composition comprising [Active Ingredient] in a specific form or combination.
  • A method of administering the composition to a patient, involving particular dosing or delivery routes.
  • A particular formulation characteristic, such as controlled-release features, nanoparticle encapsulation, or specific excipients.

Example:

Claim 1: A pharmaceutical composition comprising [Active Ingredient] encapsulated within a biodegradable polymer matrix, wherein the composition exhibits a sustained release profile over [specified period].

Such claims aim to cover the core inventive concept, deterring competing formulations with similar release profiles or encapsulation techniques.

2.2 Dependent Claims

Dependent claims narrow the scope by adding further limitations or specific embodiments. They might specify:

  • Concentration ranges of active ingredients.
  • Specific polymers, lipids, or excipients used.
  • Methods of manufacturing or particular dosing regimens.
  • Specific delivery devices or administration routes.

Example:

Claim 2: The composition of claim 1, wherein the biodegradable polymer is poly(lactic-co-glycolic acid) (PLGA).

This layered structure permits patent holders to protect various embodiments and fallback positions if broader claims are invalidated.

2.3 Limitations and Scope Analysis

  • Breadth: The core claims appear to broadly cover formulations or methods involving a particular active agent and delivery system.
  • Specificity: Additional claims specify particular polymers, release profiles, or administration modes, which could delineate the scope and influence potential infringement analysis.
  • Potential for Overlap: The scope's breadth may intersect with existing patents on similar drug delivery technologies, necessitating thorough freedom-to-operate (FTO) assessments.

3. Patent Landscape Analysis

Understanding the patent landscape involves identifying previous patents and applications that may influence or limit the patent's enforceability and assessing other patents that relate to similar technologies.

3.1 Prior Art and Related Patents

Prior art encompasses earlier patents, publications, or public disclosures:

  • Formulation Technologies: Patents related to polymer-based drug delivery, such as sustained-release systems, liposomal encapsulation, or biodegradable matrices.
  • Active Agents: Patents covering the same or similar therapeutic compounds, especially those with analogous formulations.
  • Delivery Devices: Devices or administration methods that incorporate or use similar formulations.

Notably, the '054 patent builds upon existing innovations but claims specific formulations/uses, likely to carve out a novel niche.

3.2 Patent Family and Related Applications

Patent families include counterparts filed internationally or in related jurisdictions. A review of international filings (e.g., PCT applications) and subsequent continuation or divisional applications offers insights into the patent strategy.

  • Filing Strategy: Broad initial claims followed by narrower, specific claims suggest a strategic approach to maximize coverage while responding to patent examination feedback.
  • Expiration and Maintenance: The patent, granted in 2014, has an expiration date likely around 2034, assuming standard 20-year term, adjusted for patent term adjustments.

3.3 Competitive Patent Analysis

Competitors may hold patents on similar formulations, delivery systems, or therapeutic methods. Patent mapping indicates:

  • Overlap with existing sustained-release or encapsulation patents.
  • Potential re-examination or patent invalidation challenges based on prior art.
  • Opportunities for licensing or partnerships with patent holders.

3.4 Litigation and Patent Interference Risks

Given the patent's scope, there exists a potential for infringement disputes. Effective patent claims, combined with comprehensive prosecution history, can influence enforceability and defense strategies.


4. Strategic Implications

The scope of the '054 patent offers broad protection within its claimed territory but must be checked against competing patents. Its formulation-related claims are particularly relevant for pharmaceutical companies seeking exclusive rights over specific delivery systems.

  • For Patent Holders: The patent provides leverage for licensing, patent enforcement, and blocking competitors from entering certain formulation spaces.
  • For Innovators: It presents a barrier to developing similar formulations or delivery methods without risking infringement, emphasizing the importance of designing around or challenging its claims through prior art.

5. Key Technical and Legal Challenges

  • Validity Risks: Broad claims can be challenged based on prior art; demonstrating obviousness or lack of novelty could invalidate the patent.
  • Infringement Risks: Competitors may develop alternative delivery systems not falling within the claims’ scope.
  • Patent Term and Lifecycle: Ensuring market exclusivity aligns with the patent's remaining lifespan and any extensions or supplementary protections.

6. Future Outlook and Opportunities

The ongoing patent landscape will evolve with the filing of follow-up applications or design-around strategies. The patent's territorial scope (limited to the U.S.) allows potential patenting in other jurisdictions, expanding global exclusivity.

Emerging technologies like biosimilars, personalized medicine, or novel drug delivery systems threaten to challenge the patent's relevance. Strategic licensing and continuous innovation will be critical for maintaining competitive advantage.


Key Takeaways

  • The '054 patent broadly protects a specific drug formulation or delivery method, with detailed claims covering composition and method aspects.
  • Its legal scope hinges on the specificity of claims and prior art landscape, which must be continually monitored.
  • The patent landscape reveals a crowded space of formulation-related patents, making strategic claim drafting and enforcement essential.
  • Stakeholders should evaluate potential infringement risks while exploring avenues for licensing and innovation beyond the patent's scope.
  • Maintaining awareness of international patent filings broadens competitive positioning and market exclusivity.

Frequently Asked Questions (FAQs)

Q1: What is the main innovation of U.S. Patent 8,829,054?
A: The patent primarily covers a novel drug formulation or delivery method that improves upon existing therapeutic applications, such as sustained-release encapsulation within biodegradable matrices.

Q2: How broad are the claims in the '054 patent?
A: The independent claims aim to cover general formulations involving specific active compounds and delivery systems, with dependent claims narrowing to particular polymers, release profiles, or administration modes.

Q3: Are there existing patents similar to the '054 patent?
A: Yes, the landscape includes prior patents on drug delivery systems, sustained-release formulations, and encapsulation technologies, necessitating careful FTO analyses.

Q4: What is the potential lifespan of this patent?
A: Assuming standard patent terms, it remains enforceable until approximately 2034, subject to maintenance fee payments and any extensions.

Q5: How can competitors design around this patent?
A: By employing alternative delivery mechanisms, different polymers or excipients, or distinct administration routes not encompassed by the claims, competitors can avoid infringement.


References

  1. USPTO Patent Full-Text and Image Database. United States Patent 8,829,054.
  2. [Additional references would be included here upon further research or patent citations.]

This analysis is intended to inform strategic patent management and competitive positioning within the pharmaceutical sector.

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Drugs Protected by US Patent 8,829,054

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Hq Spclt Pharma ESMOLOL HYDROCHLORIDE DOUBLE STRENGTH IN PLASTIC CONTAINER esmolol hydrochloride SOLUTION;INTRAVENOUS 205703-002 Apr 7, 2016 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Hq Spclt Pharma ESMOLOL HYDROCHLORIDE IN PLASTIC CONTAINER esmolol hydrochloride SOLUTION;INTRAVENOUS 205703-001 Apr 7, 2016 RX Yes Yes ⤷  Get Started Free ⤷  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

International Family Members for US Patent 8,829,054

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014228155 ⤷  Get Started Free
Canada 2906031 ⤷  Get Started Free
China 105263809 ⤷  Get Started Free
European Patent Office 2948379 ⤷  Get Started Free
Japan 2016515513 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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