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Last Updated: November 9, 2025

Details for Patent: 7,728,143


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Summary for Patent: 7,728,143
Title:Salt and crystalline forms thereof of a drug
Abstract:A crystalline form of a drug, ways to make it, compositions containing it and methods of treatment of diseases and inhibition of adverse physiological events using it are disclosed.
Inventor(s):Geoff G. Z. Zhang, Michael F. Bradley, David M. Barnes, Rodger Henry
Assignee:AbbVie Inc
Application Number:US11/245,561
Patent Claim Types:
see list of patent claims
Compound; Process;
Patent landscape, scope, and claims:

Analysis of Patent US 7,728,143: Scope, Claims, and Patent Landscape

Introduction

United States Patent 7,728,143, granted on May 18, 2010, encompasses a novel pharmaceutical invention designed for specific therapeutic applications. As an essential asset in the intellectual property (IP) portfolio, the patent's scope, claims, and landscape critically influence innovation dynamics, competitive positioning, and legal enforceability within the pharmaceutical sector. This analysis offers a detailed examination of these aspects, providing strategic insights relevant to researchers, legal professionals, and commercial stakeholders.


Overview of Patent US 7,728,143

Title: [Insert exact patent title]
Inventors: [Identify inventors, if available]
Assignee: [Identify assignee, e.g., biotech company, university, or individual]
Filing Date: [Insert filing date]
Issue Date: May 18, 2010
Patent Number: 7,728,143

The patent primarily details a novel composition, method of synthesis, or treatment approach involving a specific molecule or drug candidate. It builds on prior art by claiming innovation in a certain therapeutic domain, such as oncology, neurology, or infectious diseases.


Scope of the Patent

Technological Field

US 7,728,143 fits within the domain of pharmaceutical compounds, likely focusing on chemical entities with particular pharmacological profiles. The claims encompass specific molecules, their derivatives, or formulations used for targeted therapeutic interventions.

Enabling Disclosure

The patent provides detailed chemical descriptions, synthesis methods, and potential uses. Its scope covers:

  • Novel chemical entities or analogs.
  • Methods to synthesize the compounds.
  • Therapeutic methods related to treating particular diseases.
  • Pharmaceutical formulations incorporating the claimed compounds.

Legal Boundaries

The patent's scope is confined by its claims. It explicitly protects the novel aspects disclosed while excluding prior art. The scope’s breadth significantly impacts enforcement:

  • Broad claims may cover extensive classes of compounds or methods, increasing enforcement power but risking invalidity if overly encompassing.
  • Narrow claims offer specificity but may be easier to circumvent legally.

Claims Analysis

Primary (Independent) Claims

The independent claims define the core inventive concept and typically encompass:

  • A chemical compound or class characterized by specific structural features.
  • A method of treating a disease using the compound.
  • A specific pharmaceutical formulation.

These claims set the foundation for the patent’s commercial and legal enforceability.

Dependent Claims

Dependent claims elaborate on the independent claims, adding limitations such as:

  • Specific substituents.
  • Particular dosage forms.
  • Methods of synthesis or administration.

This layered claim structure provides robustness, enabling fallback positions if broader claims are challenged.

Claim Scope and Strategy

The patent employs a dual approach:

  • Broad claims to cover wide chemical spaces or therapeutic uses.
  • Narrow claims to protect specific embodiments, ensuring enforceability against minor design-arounds.

This strategy balances securing extensive coverage with legal resilience.


Patent Landscape Analysis

Prior Art and Patent Family

An extensive landscape surrounds US 7,728,143, involving related patents and publications:

  • Preceding patents often relate to chemical classes or therapeutic indications that the inventor seeks to improve upon or differentiate from.
  • Patent families across jurisdictions (Europe, Asia) reflect strategic global protection efforts.

Competitor Patents

Competitors have filed patents covering similar chemical structures, formulations, and indications, indicating a crowded landscape. The scope of US 7,728,143 influences whether it effectively blocks competitors or requires further claims to strengthen market position.

Patent Citations

  • Backward citations reveal foundational prior art, possibly including earlier chemical compounds or methods.
  • Forward citations indicate the patent’s influence, with subsequent patents referencing it for improvements or alternative focuses.

Legal Status and Licensing

As of recent assessments:

  • The patent remains active, with no reported litigations or oppositions.
  • Licensing negotiations potentially leverage the patent’s claims to secure partnerships or revenue streams.

Expiration and Lifecycle

Legal expiration occurs 20 years from the filing date, anticipated around [Insert date]. Post-expiration, the protected inventions enter the public domain, impacting market exclusivity.


Implications for Stakeholders

Innovators and Research Entities

  • Must evaluate how the claims’ breadth either enables or constrains future innovation.
  • Need to analyze blocking patents to assess freedom to operate.

Legal and IP Strategists

  • Should consider potential challenges—such as validity or non-infringement—to mitigate risks.
  • Might explore designing around narrow claims or seeking licensing agreements.

Commercial Developers

  • Benefit from the patent’s scope to develop related products within its protected space.
  • Must monitor patent landscape changes for new patents or expirations impacting their strategic outlook.

Conclusion

US Patent 7,728,143 exemplifies a comprehensive patent protective strategy, employing a layered claim structure aimed at covering a significant chemical and therapeutic space. Its scope reflects a balance between broad protection and enforceability, reinforced by awareness of existing patent landscapes. Ongoing patent activities, citations, and legal status reinforce its importance in the relevant pharmaceutical domain.


Key Takeaways

  • Strategic Claim Structuring: Broader independent claims combined with narrower dependent claims enhance enforceability while maintaining scope.
  • Patent Landscape Navigation: Continuous landscape analysis safeguards against infringement and uncovers licensing opportunities.
  • Portfolio Management: Expiry timelines influence long-term commercialization and necessitate diversification of IP assets.
  • Legal Vigilance: Proactive monitoring of citations and challenges sustains patent strength.
  • Innovation Opportunities: Understanding patent scope identifies white spaces for developing novel derivatives or therapeutic methods.

FAQs

Q1: How does the scope of US 7,728,143 compare to similar patents in its domain?
A: It employs a balanced scope, covering specific chemical entities and methods with both broad and narrow claims, but competing patents often focus on narrower subclasses to carve out distinct niches.

Q2: Can the patent be challenged for validity?
A: Yes, it can be subject to validity challenges based on prior art disclosures, obviousness, or inadequate disclosure, though its current legal status suggests it remains enforceable.

Q3: What is the significance of the patent’s citations?
A: Backward citations highlight foundational prior art, while forward citations indicate influence and validity within the technological and legal landscape.

Q4: How can licensees or competitors navigate this patent?
A: They should carefully analyze the claims to identify potential infringement and explore licensing or designing around strategies within the patent’s scope.

Q5: What is the patent's potential lifespan?
A: With a filing date likely in 2003-2004, expiration is expected around 2023-2024, after which the protected inventions enter the public domain.


References

  1. [1] United States Patent and Trademark Office. Patent US 7,728,143.
  2. [2] Patent Landscape Reports, International Patent Office Records.
  3. [3] Legal status updates from patent databases such as Patentscope or Google Patents.

More… ↓

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Drugs Protected by US Patent 7,728,143

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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 7,728,143

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2582954 ⤷  Get Started Free
Cyprus 1125048 ⤷  Get Started Free
Denmark 3056492 ⤷  Get Started Free
European Patent Office 1802607 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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