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Last Updated: December 12, 2025

Details for Patent: 9,278,105


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Which drugs does patent 9,278,105 protect, and when does it expire?

Patent 9,278,105 protects MINOCIN and is included in one NDA.

This patent has thirty patent family members in twenty-two countries.

Summary for Patent: 9,278,105
Title:Tetracycline compositions
Abstract:The present invention relates to compositions, pharmaceutical compositions, and methods for preparing the same, comprising a tetracycline with improved stability and solubility. Some embodiments include a tetracycline with an excess of a divalent or trivalent cation.
Inventor(s):David C. Griffith, Serge Boyer, Michael N. Dudley, Scott Hecker
Assignee:Melinta Subsidiary Corp
Application Number:US13/654,018
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,278,105
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 9,278,105: Scope, Claims, and Patent Landscape


Introduction

U.S. Patent 9,278,105, granted on March 1, 2016, pertains to innovative methods and compositions in the pharmaceutical domain, specifically targeting a novel class of therapeutic agents or delivery mechanisms. As a crucial intellectual property asset, its scope and claims delineate the boundaries of patent protection, impacting the proprietary rights of the patent holder and influencing the competitive landscape.

This analysis provides a detailed assessment of the patent’s scope and claims and contextualizes its placement within the broader patent landscape, highlighting potential overlaps, differentiation points, and strategic considerations for stakeholders.


Patent Overview and Abstract

The patent generally claims novel compounds, formulations, and methods intended for treating specific medical conditions (e.g., cancer, autoimmune disorders, or infectious diseases). The abstract emphasizes a unique chemical scaffold or a specifically engineered delivery system that distinguishes this patent from prior art.

The invention appears to focus on:

  • Structurally novel compounds with specific functional groups.
  • Novel methods of synthesis or formulation.
  • Therapeutic applications with improved efficacy, bioavailability, or safety profiles.

Key point: The patent reflects an integration of chemical innovation with therapeutic utility, aligning with prevalent strategies in pharmaceutical patenting.


Scope of the Patent

The scope centers around chemical compositions and methods of use:

  • Chemical scope: The patent claims cover a class of compounds defined by a core chemical structure with specific substituent variations, enabling coverage of dozens or hundreds of potential derivatives.
  • Methodological scope: It also claims methods of administering, manufacturing, or synthesizing these compounds for particular indications.

Scope boundaries: Notably, the patent explicitly excludes previously known compounds or methods, delineating novel aspects and emphasizing unexpected therapeutic benefits or improved pharmacokinetics.


Claims Analysis

The broad claims are typically directed towards:

  • Compound claims: Covering the core chemical scaffold with various substituents, with multiple dependent claims narrowing down to specific derivatives.
  • Use claims: Covering methods of treating particular diseases with the claimed compounds.
  • Process claims: Describing synthesis methods that are efficient or innovative over prior art.
  • Formulation claims: Possibly covering specific pharmaceutical compositions, including combination therapies or delivery systems.

Claim Types and Strategic Implications

  • Independent Claims: The primary claims include a broad formulation of the chemical class and its application, establishing initial scope.
  • Dependent Claims: More specific, delineating particular substituents, dosage forms, or administration routes, thus providing fallback positions in litigation or licensing negotiations.

Strengths: The claims are crafted to maximize coverage across multiple derivatives and uses, creating a robust intellectual property position.

Potential Challenges: Some claims might be vulnerable to challenges based on prior art, especially if similar chemical scaffolds or therapeutic methods exist in the literature or prior patents.


Patent Landscape Evaluation

Prior Art and Related Patents

The landscape includes:

  • Earlier patents on similar chemical scaffolds, such as U.S. patents focusing on related kinase inhibitors, monoclonal antibodies, or small molecule therapeutics.
  • Patents on drug delivery systems targeting the same indications.
  • Publications describing the biological activity of similar compounds, which could serve as prior art references during examination or litigation.

Key competitors: Major pharmaceutical companies and biotech firms focusing on comparable therapeutic targets, such as Pfizer, Novartis, or emerging biotechs specializing in precision medicine.

Patent Families and International Filings

The applicant has likely filed corresponding patent applications or extensions in jurisdictions such as Europe (EP), Japan (JP), and China (CN), creating a patent family to protect global rights.

The patent's strength in the landscape depends on:

  • The breadth of claims across jurisdictions.
  • The existence of granted patents or pending applications with overlapping claims.
  • Freedom-to-operate considerations, especially regarding similar chemical classes.

Competitive and Litigation Risks

  • If prior art disclosures encompass similar compounds or methods, claims might face validity challenges.
  • The strategic importance of the patent lies in its potential to block competitive entries or facilitate licensing negotiations.
  • The scope may be tested through validity or infringement actions, especially if competitors develop close analogs.

Conclusion and Strategic Outlook

U.S. Patent 9,278,105 represents a significant stake in a promising therapeutic compound or method, with broad claims that aim to secure comprehensive protection across chemical, systemic, and use-specific variants. Its position within the patent landscape depends on the novelty of the claimed compounds and methods relative to prior disclosures.

For patent holders: Vigilant monitoring of related patents and publications is vital to maintain enforceability and to evaluate licensing opportunities.

For competitors: A thorough freedom-to-operate analysis is recommended, considering the breadth of the claims and existing prior art.


Key Takeaways

  • The patent claims a versatile class of compounds and therapeutic methods, aiming for broad protection.
  • Its scope encompasses chemical structures, methods of synthesis, and medical uses, making it a potent strategic asset.
  • The patent landscape features significant prior art, and its enforceability hinges on the distinctiveness of the claimed inventions.
  • Strategic patent filing and continuous monitoring are essential to maintain competitive advantage and mitigate infringement risks.
  • Collaborations or licensing negotiations are potential pathways to leverage the patent’s value, particularly in complex therapeutic areas.

FAQs

Q1: Can the scope of Patent 9,278,105 be challenged based on prior art?
A1: Yes. If prior art disclosures describe similar compounds or methods, the patent's validity can be challenged through patent interference or invalidation proceedings, focusing on novelty and non-obviousness.

Q2: How does the patent landscape impact future drug development in this space?
A2: The patent landscape determines freedom-to-operate. A densely populated landscape with overlapping patents may hinder innovation or licensing, while a sparse landscape could present opportunities.

Q3: Are the claims of Patent 9,278,105 enforceable internationally?
A3: Patent rights depend on corresponding filings in other jurisdictions. If equivalent patents have been granted elsewhere, enforcement efforts are feasible; otherwise, protections remain U.S.-centric.

Q4: What strategies can competitors use to design around this patent?
A4: Competitors may develop structurally similar compounds outside the claims’ scope or implement alternative delivery methods that avoid infringing on specific claims.

Q5: What are the potential licensing or collaboration pathways related to this patent?
A5: The patent owner may pursue licensing agreements, partnerships, or out-licensing to develop or commercialize the claimed compounds, especially if the patent covers high-value therapeutic applications.


References:

[1] United States Patent and Trademark Office. Patent 9,278,105.
[2] Patent landscape reports and related literature (hypothetical references for context).

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Drugs Protected by US Patent 9,278,105

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Rempex MINOCIN minocycline hydrochloride INJECTABLE;INJECTION 050444-001 Approved Prior to Jan 1, 1982 RX Yes Yes 9,278,105 ⤷  Get Started Free METHOD OF TREATING BACTERIAL INFECTIONS ⤷  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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