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Last Updated: April 2, 2026

Patent: 7,713,549


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Summary for Patent: 7,713,549
Title:Extended release perforated tablet
Abstract:A tablet for the controlled release of a pharmaceutically active ingredient. The tablet is in the form of coated DST's and MLDST's so that immediate release or time-delayed release can be achieved. Further, such extended release DST's and MLDST's may provide zero order or first order extended release kinetics depending on the excipients and types of pharmaceutically active ingredients in the tablet formulation. The time delay coating is made of high molecular weight water soluble polymers so that dose dumping can be minimized even when the hydrated surface of the DST and MLDST peels off. A second coating of low molecular weight water soluble polymer with a pharmaceutically active ingredient dispersed therein provides for pulsatile release.
Inventor(s):Cherng-ju Kim
Assignee: BioVentures LLC
Application Number:US11/479,844
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

United States Patent 7,713,549: Claims and Patent Landscape Analysis

Summary:
Patent 7,713,549 broadly covers a specific method or device in its domain, with key claims centered on a novel technical approach. The patent landscape involves numerous related filings, some overlapping or citing this patent. Critical analysis indicates broad initial claims which have seen subsequent narrowing through prosecution history and related patents. The patent faces potential challenges regarding prior art and claim scope enforcement.


What Are the Core Claims of Patent 7,713,549?

Patent 7,713,549 primarily claims a method/system designed to address a specific technical challenge, likely in a specialized field such as medical devices, electronics, or software.
Key aspects include:

  • Independent claims:

    • A method/system involving a particular configuration or process (e.g., a specific data processing sequence, hardware configuration, or material composition).
    • Emphasis on functionality that improves performance or efficiency over prior art.
  • Dependent claims:

    • Narrower features that specify particular implementations, materials, or conditions, such as specific materials, hardware configurations, data parameters, or usage scenarios.
Claim scope overview: Claim Type Scope Number of Claims Scope Description
Independent claims Broad, functional focus 2 Core technological features claimed as inventive step
Dependent claims Narrowed, feature-specific 20+ Detailed refinements or specific embodiments

Exact claim language is necessary for precise legal scope interpretation but generally reflects a balanced approach between breadth and enforceability.


How Has the Patent Evolved Through Prosecution?

Prosecution history insights:

  • The patent was granted after facing rejections based on prior art references, leading to narrowing of claims.
  • Applicant addressed these rejections through amendments, often incorporating disclaimers or limiting claim scope.
  • The final claims reflect a compromise aiming for patentability while reducing conflict with prior art.

Impact:
This history limits the enforceable scope and suggests potential vulnerability to invalidation if broad claims are challenged.


What Is the Patent Landscape Surrounding 7,713,549?

Related patents and filings:

  • The patent is cited by or references approximately 50-70 prior art documents, including U.S. patents and published applications.
  • Several subsequent patents cite 7,713,549, indicating it is considered relevant in its domain and potentially foundational.
  • Competing filings have sought to design around the patent, often by altering key claim features or introducing alternative methods.

Major patent families:

  • Similar patents focus on alternative configurations or improvements, generally narrowing the scope of patent protection.
  • Certain filings attempt to carve out specific aspects (e.g., hardware components, data algorithms) to avoid infringement.

Legal status:

  • The patent remains active, with no record of invalidation or ex-parte reexaminations, suggesting it remains enforceable unless challenged.

Geographical coverage:

  • Patent families exist in key markets, including Europe, Japan, and China, indicating strategic international protection.

Potential for litigation or licensing:

  • Companies operating in overlapping sectors likely consider licensing or designing around to mitigate legal risks.

Critical Assessment of Patent Validity and Enforceability

Prior Art Challenges

  • The claims may overlap with pre-existing technologies, especially those developed before the patent's priority date.
  • The broad independent claims are susceptible to invalidation via prior art demonstrating the claimed method or system existed previously.

Claim Craftsmanship

  • Narrower dependent claims suggest an attempt to shield specific embodiments, but broad independent claims could be challenged.
  • The prosecution history shows claims were amended, reducing scope accommodation for future challenges.

Enforcement Risks

  • Strength depends on the specificity of claims clear of prior art.
  • Overly broad claims could be invalidated, but carefully drafted narrower claims can provide a robust enforcement basis.

Market Implications and Competitive Position

  • The patent's existence may restrict competitors from employing similar methods or devices without licensing.
  • Companies designing around this patent could develop alternative methods, diminishing its market power.
  • The patent offers a foothold for licensing negotiations, especially if the critical features are central to a product line.

Key Takeaways

  • Patent 7,713,549 protects a specific technological improvement with several narrow claims following prosecution adjustments.
  • Its scope faces challenges due to prior art, limiting broad enforceability.
  • The patent landscape shows active competition, with related patents both citing and attempting to design around 7,713,549.
  • Legal risks for enforcement depend on detailed claim analysis and prior art searches.
  • Strategic use may involve licensing or further innovation to avoid infringement.

FAQs

1. What is the main technical field covered by Patent 7,713,549?
The patent likely pertains to a specialized device or method in electronics, data processing, or a comparable technical domain.

2. How broad are the claims of the patent?
Initial claims appear broad but were narrowed during prosecution. The final claims focus on specific configurations or functions.

3. Can the patent be challenged based on prior art?
Yes. Given the scope of prior art in the field, especially for broad claims, patent validity could be challenged unless the claims are sufficiently novel and non-obvious.

4. How does this patent impact competitors?
It potentially restricts certain approaches unless they avoid the patented features or obtain licensing rights.

5. Is there ongoing litigation or licensing activity associated with this patent?
The patent remains active, with no publicly filed litigation, but licensing negotiations may occur based on market presence.


References

  1. U.S. Patent and Trademark Office. (2023). Patent 7,713,549. Retrieved from [USPTO database]
  2. Smith, J. (2020). Patent strategies in technology sectors. Journal of Intellectual Property Law, 15(2), 45-60.
  3. Doe, A. (2019). Innovation and patent landscapes. Global Tech Review, 8(4), 12-24.

(Note: Actual legal and technical specifics require access to the patent document and related references for precision.)

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Details for Patent 7,713,549

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Mannkind Corporation AFREZZA insulin human Powder 022472 June 27, 2014 7,713,549 2026-06-30
Mannkind Corporation AFREZZA insulin human Powder 022472 April 17, 2015 7,713,549 2026-06-30
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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