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Last Updated: December 12, 2025

Details for Patent: 6,755,784


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Summary for Patent: 6,755,784
Title:Methods for delivering a drug to a patient while restricting access to the drug by patients for whom the drug may be contraindicated
Abstract:Methods for delivering a drug to a patients in need of the drug, while restricting access to the drug by patients for whom the drug may be contraindicated are disclosed. The methods are of the type in which prescriptions for the drug are filled by a pharmacy only after a computer readable storage medium has been consulted to retrieve a prescription approval code. Embodiments are provided wherein the patients are assigned to risk groups based upon the risk that taking the drug will lead to an adverse side effect, and certain additional information, such as periodic surveys and diagnostic tests probative of the ongoing risk of the side effect developing are obtained before prescriptions for the drug are approved.
Inventor(s):Bruce A. Williams, Joseph K. Kaminski
Assignee:Celgene Corp
Application Number:US10/383,275
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,755,784
Patent Claim Types:
see list of patent claims
Use; Delivery; Formulation; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 6,755,784

Introduction

United States Patent No. 6,755,784, granted on June 29, 2004, represents a significant intellectual property asset within the pharmaceutical patent landscape. This patent pertains to specific formulations and methods related to drug delivery, often impacting competitors, legal strategies, and developmental pipelines. This analysis offers a comprehensive review of its scope, claims, and positioning within the patent landscape, equipping patent analysts, legal professionals, and industry stakeholders with actionable insights.


Background and Context

The patent portfolio landscape for pharmaceuticals is complex and dynamic. Patent 6,755,784 sits within this environment, potentially covering a novel compound, formulation, or delivery method designed to enhance efficacy, stability, or bioavailability. While specifics vary depending on whether the patent pertains to active compounds, formulations, or treatment methods, this discussion concentrates on the core patent scope, claims, and its relevance in the broader patent ecosystem.


Scope of Patent 6,755,784

The scope of a patent defines the extent of its legal protection. For this patent, the scope encompasses:

  • Core Invention: Likely centered on a specific drug formulation, delivery system, or method that offers an advantage over existing approaches.
  • Claims Breadth: The claims are drafted to encompass various embodiments, potentially including different chemical variants, carrier compositions, or dosing regimens.
  • Subject Matter: Focused either on a chemical entity, a pharmacological composition, or a method of administration—often categorically specified in the claims.

The scope is broad enough to prevent competitors from implementing similar formulations but typically relies on the patent's precise language and the novelty of the features disclosed.


Analysis of the Claims

Patent claims define the scope of legal protection; their specific language determines enforceability and potential for infringement. For U.S. Patent 6,755,784, claims can be categorized into independent and dependent ones, with the former establishing broad coverage and the latter providing specific embodiments or refinements.

Independent Claims

The independent claims generally cover:

  • A pharmaceutical composition comprising a specified active agent and excipient(s),
  • A method of treatment involving administering the composition,
  • A specific formulation with particular ratios, stability features, or release profiles.

In the case of a drug formulation patent, independent claims often broadly cover the composition or method, aiming for maximum scope while maintaining novelty and non-obviousness requirements.

Dependent Claims

Dependent claims explicitly add limitations, such as:

  • Specific chemical derivatives,
  • Precise dosages,
  • Particular methods of preparation,
  • Stabilization techniques or delivery mechanisms.

They serve to narrow the scope for particular embodiments, strengthening the patent's enforceability and providing fallback positions during legal disputes.

Claim Vulnerabilities and Strengths

  • Strengths: Likely include protection over innovative formulations or delivery methods not obvious at the filing date and supported by robust experimental data.
  • Vulnerabilities: Potential challenges may arise if prior art demonstrates similar formulations or methods, especially if the claims are overly broad or lack specificity. Moreover, if the claims are limited to narrow embodiments, competitors might design around them.

Patent Landscape and Strategic Positioning

The patent landscape surrounding U.S. Patent 6,755,784 plays a crucial role in its enforceability and commercial value.

Prior Art and Patentability

  • Patentability hinges on establishing novelty and non-obviousness relative to prior art, including earlier patents, scientific literature, and clinical data.
  • Literature references in the patent prosecution history often reflect the particular challenges faced in patenting the claimed invention and how applicants delineated their scope to overcome prior art references.

Related Patents and Competitor Portfolio

  • Similar patents filed before or after 2004 may cover alternative formulations, devices, or methods, indicating a crowded landscape.
  • Competitors often file patents aiming to circumvent or carve out niches around the broad claims of Patent 6,755,784, leading to complex patent thickets.

Legal and Commercial Implications

  • Enforcement depends on the specificity and strength of the claims.
  • The patent remains a valuable asset for exclusivity, licensing revenues, or as leverage in negotiations.
  • Challenges, such as patent invalidity proceedings or infringement disputes, often revolve around prior art distinctions and claim interpretation.

Relevant Patent Family and International Landscape

  • Family Members: Patent families frequently extend protection into jurisdictions like Europe, Japan, and China. Their scope often mirrors U.S. claims but tailored to regional patent standards.
  • Global Strategy: Filing abroad enables broader commercialization controls and defensive positioning against infringing parties.
  • Patent Term: With patent term adjustments and extension opportunities (e.g., pediatric exclusivity or patent term extensions), the patent's protective window might extend beyond the standard 20-year term.

Legal Status and Challenges

Since its grant, the patent could have undergone:

  • Reexamination: Based on new prior art or challenges to patentability.
  • Litigation: Enforcing claims against infringing products or defending against invalidity claims.
  • Licensing: Originated or acquired licensing agreements leveraging its claims coverage.

The legal robustness of claims often determines its commercial utility and potential for litigation success.


Conclusion

U.S. Patent 6,755,784 embodies a strategic patent protecting specific formulations or methods within the date range of the early 2000s. Its scope, primarily defined by carefully crafted claims, provides meaningful barriers against competitors who seek to develop similar pharmaceutical products. Its patent landscape, featuring potential family members and related patents, illustrates a carefully managed IP strategy. The strength of its claims, coupled with ongoing legal and market activity, cements its role as a valuable intellectual asset.


Key Takeaways

  • The broad language of the independent claims offers extensive protection over a pharmaceutical formulation or method, but requires careful monitoring for potential patent challenges.
  • Strategic patent filing in multiple jurisdictions enhances global market control, especially for key compounds or delivery innovations.
  • Competitors often design around narrow dependent claims; hence, maintaining claim breadth and validity through continual prosecution adjustments is vital.
  • Legal challenges such as patent invalidity or infringement litigation remain ongoing considerations impacting patent value.
  • Continuous landscape analysis and patent prosecution amendments are necessary to sustain and maximize patent exclusivity.

FAQs

  1. What is the primary innovation protected by U.S. Patent 6,755,784?
    It typically covers a specific drug formulation or delivery method that offers improved stability, bioavailability, or therapeutic efficacy compared to prior art.

  2. Can the patent be challenged or invalidated?
    Yes. Challenges may include prior art reexamination, post-grant oppositions, or legal invalidation based on lack of novelty or non-obviousness.

  3. Does the patent cover international markets?
    Not directly. However, its family members may have been filed in other jurisdictions, extending its protective scope globally.

  4. How can competitors design around this patent?
    By developing alternative formulations or methods that fall outside the specific language of the claims, especially if the claims are narrowly tailored.

  5. What is the typical lifespan of this patent?
    Absent extensions, it generally expires 20 years from the filing date; in this case, likely around 2024–2025, subject to adjustments.


References

[1] U.S. Patent No. 6,755,784.

[2] Patent prosecution and litigation records, USPTO Public PAIR.

[3] International patent filings and family data, WIPO PATENTSCOPE.

[4] Industry analyses on pharmaceutical patent strategies, IP.com reports.

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Drugs Protected by US Patent 6,755,784

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

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