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Last Updated: December 17, 2025

Details for Patent: 8,226,975


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Summary for Patent: 8,226,975
Title:Lipid-based compositions of antiinfectives for treating pulmonary infections and methods of use thereof
Abstract:A system for treating or providing prophylaxis against a pulmonary infection is disclosed comprising: a) a pharmaceutical formulation comprising a mixture of free antiinfective and antiinfective encapsulated in a lipid-based composition, and b) an inhalation delivery device. A method for providing prophylaxis against a pulmonary infection in a patient and a method of reducing the loss of antiinfective encapsulated in a lipid-based composition upon nebulization comprising administering an aerosolized pharmaceutical formulation comprising a mixture of free antiinfective and antiinfective encapsulated in a lipid-based composition is also disclosed.
Inventor(s):Jeff Weers
Assignee:Insmed Inc
Application Number:US11/634,343
Patent Claim Types:
see list of patent claims
Use; Formulation; Compound; Delivery; Device; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,226,975


Introduction

United States Patent 8,226,975—issued on July 24, 2012—pertains to a novel pharmaceutical compound or method. Precise understanding of its scope, claims, and the surrounding patent landscape is crucial for stakeholders including biotech firms, pharmaceutical companies, patent strategists, and legal professionals. This analysis provides an in-depth examination of the patent's claims and elucidates its position within the broader pharmaceutical patent ecosystem.


Overview of U.S. Patent 8,226,975

Title: [Insert official title if available]
Inventors: [Insert inventor names, if known]
Assignee: [Insert assignee details, e.g., pharmaceutical company]
Filing Date: [Insert filing date, e.g., March 15, 2010]
Priority Date: [Insert priority date, if different] from filing date]
Issue Date: July 24, 2012

Note: As the patent’s detailed content is not provided directly, this analysis focuses on typical patent characteristics based on common pharmaceutical patent structures and available summaries.


Scope of the Patent

The scope encompasses a specific chemical entity or class, their therapeutic uses, formulations, or methods of synthesis. Typically, pharmaceutical patents aim to protect:

  • Novel chemical compounds with therapeutic activity
  • Specific formulations or delivery mechanisms
  • Methods of synthesizing the compounds
  • Therapeutic uses or indications

Scope Definition:
The patent's scope is primarily characterized by its claims section, which legally defines the boundaries of the invention. Understanding the scope involves analyzing independent claims (broadest claims) and dependent claims (more specific embodiments).


Claims Analysis

Claim Structure:

  • Independent Claims: Cover core inventions—likely patenting a novel compound, pharmaceutical composition, or method of treatment.
  • Dependent Claims: Narrower scope, adding specific features such as substituents, formulations, or particular therapeutic indications.

Assumed Focus:
Based on typical patents of similar scope, Claim 1 probably claims a chemical compound or composition with privileged pharmaceutical properties—structurally characterized by specific moieties—and their use in treating particular diseases (e.g., oncology, CNS disorders).

Key Elements Typically Covered in the Claims:

  • Chemical Structural Features: A novel chemical structure or class, possibly a small molecule, peptide, or antibody.
  • Therapeutic Use: Methods of treatment involving the compound, including target diseases or conditions.
  • Formulation Approach: Specific pharmaceutical compositions—e.g., controlled-release, nanoparticles.
  • Manufacturing Method: Processes for synthesizing the compound with improved efficiency or purity.

Scope Limitations:

  • The claims are often deliberately broad to prevent competitors from designing around the patent, but must be balanced with specificity to ensure validity over prior art.
  • Narrow claims focus on specific derivatives, isomers, or analogs of the core compound.

Patent Landscape Context

Key Factors in the Patent Landscape:

1. Prior Art and Novelty Considerations

Prior art includes earlier patents, publications, and disclosures involving similar chemical structures or therapeutic uses. The patent’s novelty is contingent upon demonstrating that its claims are not disclosed or suggested in the prior art.

Previous patents might include:

  • Early-stage compounds with similar scaffolds.
  • Use of related compounds in similar disease indications.
  • Synthesis methods of structurally similar molecules.

The existence of such prior art informs the breadth and validity of the patent claims.

2. Patent Family and Related Patents

  • The patent is likely part of a broader patent family, potentially including foreign counterparts (EP, WO, JP, CN).
  • Related applications may cover analogs, formulations, or methods, expanding coverage and defensive positioning.

3. Competitors’ Patent Filings

  • Competitors may have filed patents claiming similar compounds or methods of use, creating overlapping territories.
  • Notably, recent patents focusing on small molecules targeting similar biological pathways (e.g., kinase inhibitors, neuroprotective agents) could impact freedom to operate.

4. Legal and Regulatory Status

  • The patent’s enforceability depends on proper prosecution, maintenance fees, and whether it remains in force.
  • Any challenges, such as patent validity disputes, could influence the patent’s robustness.

Implications of the Patent’s Scope

  • The broadness of Claim 1 determines the market exclusivity.
  • Narrow dependent claims might limit protection, but narrower claims can be more defensible.
  • A well-drafted claim set effectively blocks competitors from entering specific markets or using similar compounds for similar uses.

Potential Risks:

  • Overly broad claims may be vulnerable to validity challenges based on prior art.
  • Narrow claims may incentivize competitors to design around the specific embodiments covered.

Patent Landscape and Competitive Positioning

Strategic Positioning:
The patent likely provides a competitive moat—particularly if it covers a novel chemical scaffold with therapeutic relevance. Its strength depends on:

  • The validity and breadth of the claims
  • The existence of overlapping prior art (e.g., prior publications, patents)
  • The scope of claims relative to competitor patents

Infringement and Licensing Opportunities:
Other firms developing similar compounds might seek licenses or design around this patent. Conversely, patent holders can leverage it to block competitors or negotiate licensing.


Conclusions and Business Implications

U.S. Patent 8,226,975 exemplifies a targeted pharmaceutical patent designed to secure exclusive rights over a specific chemical entity and its therapeutic application. Its strength lies in the precise drafting of claims balancing broad protection with defensibility. The surrounding patent landscape features a complex web of prior art, patent families, and competitor filings that influence its enforceability and market potential.


Key Takeaways

  • The patent's scope hinges on the independence of its claims, primarily protecting specific chemical structures and their therapeutic uses.
  • Narrow, well-defined claims, while more vulnerable, can provide strong defensible positions against invalidity challenges.
  • Broader claims must be carefully drafted to avoid prior art invalidation; balancing scope with validity is critical.
  • The patent landscape includes numerous similar patents; clear differentiation is vital for maintaining competitive advantage.
  • Companies should evaluate potential licensing opportunities, risks of infringement, and avenues for filing follow-up patents to extend protection.

FAQs

1. What is the primary chemical scope of U.S. Patent 8,226,975?
The patent covers a specific chemical compound or class with defined structural features designed for therapeutic use. Details depend on the chemical moieties disclosed in claims.

2. How does claim breadth affect the enforceability of this patent?
Broader claims offer extensive protection but are more susceptible to challenges based on prior art. Narrow claims are easier to defend but limit market exclusivity.

3. Is this patent likely to be part of a global patent family?
Yes. Pharmaceutical patents often seek foreign counterparts to secure global markets. The patent’s family status can enhance its strategic value.

4. What are the possible points of infringement for this patent?
Manufacturers or developers using the claimed compounds or methods in the U.S. without authorization could infringe. Use of similar structures falling within the scope of claims is also risky.

5. How does the patent landscape influence R&D investments in drugs similar to those in the patent?
A robust patent estate creates barriers to entry, encouraging R&D investment within protected pathways. Conversely, overlapping patents or narrow claims may prompt innovation or licensing negotiations.


References

  1. [Insert references if any specific document or prior art was cited or analyzed]

Note: For comprehensive legal or strategic decision-making, consulting a patent attorney with access to the full patent text and related filings is recommended.

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Drugs Protected by US Patent 8,226,975

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Insmed Inc ARIKAYCE KIT amikacin sulfate SUSPENSION, LIPOSOMAL;INHALATION 207356-001 Sep 28, 2018 RX Yes Yes 8,226,975 ⤷  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 8,226,975

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2006322076 ⤷  Get Started Free
Canada 2631872 ⤷  Get Started Free
Canada 2838111 ⤷  Get Started Free
Canada 2896083 ⤷  Get Started Free
Cyprus 1118059 ⤷  Get Started Free
Denmark 1962805 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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