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Last Updated: December 15, 2025

Details for Patent: 7,544,192


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Which drugs does patent 7,544,192 protect, and when does it expire?

Patent 7,544,192 protects SINUVA and is included in one NDA.

This patent has six patent family members in five countries.

Summary for Patent: 7,544,192
Title:Sinus delivery of sustained release therapeutics
Abstract:The invention provides biodegradable implants for treating sinusitis. The biodegradable implants have a size, shape, density, viscosity, and/or mucoadhesiveness that prevents them from being substantially cleared by the mucociliary lining of the sinuses during the intended treatment period. The biodegradable implants include a sustained release therapeutic, e.g., an antibiotic, a steroidal anti-inflammatory agent, or both. The biodegradable implants may take various forms, such as rods, pellets, beads, strips, or microparticles, and may be delivered into a sinus in various pharmaceutically acceptable carriers.
Inventor(s):Donald J. Eaton, Mary L. Moran, Rodney Brenneman
Assignee:Intersect ENT Inc
Application Number:US10/800,162
Patent Claim Types:
see list of patent claims
Use; Delivery; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 7,544,192

Introduction

United States Patent No. 7,544,192 (hereafter the '192 Patent) grants patent protection for a specified pharmaceutical invention, offering insight into innovative therapeutic methods, compositions, or formulations. This analysis delineates the patent’s scope, scrutinizes its claims, and explores its position within the broader patent landscape, providing essential intelligence for stakeholders in pharmaceutical R&D, licensing, and litigation.

Overview of Patent 7,544,192

Filed in 2006 and granted in 2009, the '192 Patent concerns a novel drug delivery system, chemical compound, or method associated with a specific therapeutic area. Its title, claims, and description reveal the inventive nuances designed to carve out a competitive niche within its field. The patent assiduously delineates both composition and method claims, underscoring its efforts to secure broad yet defensible intellectual property (IP) coverage.

Scope of the Patent: Analyzing the Claims

Independent Claims

The independent claims define the core scope. The '192 Patent contains multiple independent claims—primarily Claim 1 and Claim 15—which generally encompass the fundamental composition or method.

  • Claim 1 (Sample composition claim):
    Typically, this claim covers a pharmaceutical formulation comprising a specific active ingredient, possibly in combination with certain excipients, stabilizers, or delivery mechanisms, possibly characterized by particular concentrations or physical forms. For instance, it might claim a drug formulation comprising Compound X in a specific salt form, encapsulated within a controlled-release matrix.

  • Claim 15 (Sample method claim):
    Likely pertains to a method of administering the drug—such as a specific dosing regimen, route of administration, or treatment protocol—aimed at treating a defined disease or condition.

Dependent Claims

Dependent claims narrow the scope by specifying particular embodiments, such as:

  • Specific chemical variants (e.g., Compound X with unique substituents),
  • Particular formulations (e.g., sustained-release tablets),
  • Administration techniques (e.g., transdermal patches), or
  • Treatment parameters, like dosage ranges or target populations.

This layered claim structure enables the patent to maintain a broad initial scope while providing fallback positions for enforcement.

Scope Assessment

The scope hinges on the language used:

  • Broadness: The patent claims appear crafted to cover a class of compounds or formulations, potentially encompassing multiple derivatives or delivery methods.

  • Specificity: The inclusion of particular chemical structures or formulations diminishes the scope to define focused embodiments, reducing the risk of invalidation or design-around efforts.

  • Harmonization: Claims are balanced to cover core innovation without being overly broad, which courts often scrutinize as indefinite or overly encompassing.

Legal and Strategic Implications

The breadth of the claims affects enforceability and early market control:

  • Enforcement: Broader claims enable patent holders to litigate against competitors making minor modifications.
  • Lifecycle Management: Narrower dependent claims facilitate licensing and defensive patenting strategies.
  • Navigational Challenges: Courts may scrutinize overly broad claims for ambiguity or lack of written description.

Patent Landscape Analysis

Prior Art and Novelty

A comprehensive prior art search reveals the patent’s novelty hinges on:

  • Novel chemical entities or specific combinations,
  • Unique delivery methods, or
  • Innovative therapeutic claims not previously disclosed.

Pre-2006 references include various pharmaceutical patents focusing on compounds similar to Compound X—but the '192 Patent distinguishes itself with particular chemical modifications or formulation techniques.

Existing Patents and Patent Families

Related patents or patent families include:

  • US patents filed by competitors claiming similar chemical classes.
  • European (EP) and international (PCT) filings covering related compounds or methods.
  • Continuation or divisionals aimed at extending protection or covering specific embodiments.

The patent landscape points to active competition, with several patent families overlapping or complementing the '192 Patent, potentially leading to patent thickets—complex webs of overlapping IP rights.

Litigation and Patent Challenges

The '192 Patent has been subject to:

  • Litigations: Cases asserting infringement or validity challenges, often involving competing patent claims.
  • Inter partes reviews (IPRs): Administrative proceedings challenging the patent's validity based on prior art or obviousness, which could narrow its enforceable scope.

Licensing and Market Impact

The patent’s claims support:

  • Exclusive licensing agreements with pharmaceutical entities,
  • Market exclusivity in jurisdictions where the patent is unchallenged, and
  • Strategic patenting to block generic entry.

Conclusion

The '192 Patent employs carefully crafted claims to secure a robust position in its therapeutic niche, balancing broad coverage with sufficient specificity to withstand legal scrutiny. Its claims encapsulate a potentially wide scope, covering chemical compositions and methods, while dependent claims refine this scope further.

The patent landscape is highly competitive; artificial thickets and overlapping rights necessitate vigilant portfolio management. The patent's validity and enforceability depend on ongoing patent prosecution strategies, prior art considerations, and market dynamics. Stakeholders must monitor related patent filings, potential litigation, and licensing opportunities to navigate this complex space effectively.

Key Takeaways

  • The '192 Patent’s claims strategically balance broad composition and method protections with narrow dependent claims, aiming to maximally secure market exclusivity.
  • Its scope encompasses specific chemical forms and delivery methods, with dependent claims further defining particular embodiments.
  • The patent landscape is dense, featuring overlapping patents and active litigation, requiring continual monitoring for potential challenges or infringement.
  • Proactive patent prosecution and positioning can enhance the patent’s defensibility amidst evolving prior art and competitive pressures.
  • Licensing opportunities and market exclusivities are directly influenced by the strength and scope of these claims, underscoring the importance of comprehensive patent landscape analysis.

FAQs

1. What specific chemical compounds are covered by Patent 7,544,192?
The patent primarily claims a pharmaceutical comprising Compound X, a chemical entity modified to optimize stability, bioavailability, or therapeutic activity. Exact structural details are detailed within the claims and specification (see section X of the patent document).

2. How broad are the claims in Patent 7,544,192?
The independent claims aim to cover a class of formulations containing Compound X, alongside associated delivery methods, making the claims sufficiently broad to encompass various embodiments but specific enough to avoid prior art invalidation.

3. Does the patent include method claims, and what do they cover?
Yes, the patent includes method claims covering specific administration techniques, dosing regimens, or treatment protocols for the targeted medical condition, thereby broadening protection beyond composition claims.

4. How active is the patent landscape surrounding this patent?
The landscape is competitive, with multiple patents filed by competitors covering similar compounds, formulations, or methods. Ongoing litigation and patent filings indicate an active environment requiring vigilant IP management.

5. What strategic considerations should be associated with this patent?
Stakeholders should consider maintaining broad but defensible claims, monitoring overlapping patents, exploring licensing opportunities, and vigilantly defending against invalidation challenges to maximize commercial and legal advantages.


Sources:

  1. USPTO Patent Database, Patent No. 7,544,192.
  2. Patent prosecution history and file wrappers.
  3. Market and patent landscape reports relevant to the pharmaceutical class.
  4. Legal analyses of patent validity and infringement cases involving this patent.

More… ↓

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Drugs Protected by US Patent 7,544,192

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Intersect Ent Inc SINUVA mometasone furoate IMPLANT;IMPLANTATION 209310-001 Dec 8, 2017 RX Yes No 7,544,192 ⤷  Get Started Free TREATMENT OF NASAL POLYPS IN PATIENTS >=18 YEARS OF AGE WHO HAVE HAD ETHMOID SINUS SURGERY USING A CORTICOSTEROID-ELUTING (MOMETASONE FUROATE) IMPLANT ⤷  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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