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Last Updated: December 19, 2025

Details for Patent: 9,101,543


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Which drugs does patent 9,101,543 protect, and when does it expire?

Patent 9,101,543 protects ABRAXANE and is included in one NDA.

Protection for ABRAXANE has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has one hundred and nineteen patent family members in twenty-six countries.

Summary for Patent: 9,101,543
Title:Combinations and modes of administration of therapeutic agents and combination therapy
Abstract:The present invention provides combination therapy methods of treating proliferative diseases (such as cancer) comprising a first therapy comprising administering to an individual an effective amount of a taxane in a nanoparticle composition, and a second therapy which may include, for example, radiation, surgery, administration of chemotherapeutic agents, or combinations thereof. Also provided are methods of administering to an individual a drug taxane in a nanoparticle composition based on a metronomic dosing regime.
Inventor(s):Neil P. Desai, Patrick Soon-Shiong
Assignee:Abraxis Bioscience LLC
Application Number:US13/585,696
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,101,543
Patent Claim Types:
see list of patent claims
Use; Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,101,543


Introduction

U.S. Patent 9,101,543 (hereinafter "the ’543 patent") pertains to a biologically significant invention within the pharmaceutical and biotechnological domains. Issued on August 4, 2015, the patent claims protection over specific formulations, methods, or compounds that relate to a novel therapeutic approach or a new class of molecules. Analyzing its scope, claims, and the broader patent landscape reveals insights into its strategic positioning, competitive advantage, and potential challenges.


Scope of the ’543 Patent

The scope of U.S. Patent 9,101,543 is defined by its claims, which specify the boundaries of exclusive rights granted by the patent office. The invention primarily resides in a particular molecular entity, composition, or method that confers therapeutic benefits.

Key aspects of the scope include:

  • Claimed subject matter: Typically, the patent encompasses a specific class of molecules or compositions with particular structures or functional properties. For instance, it might claim a monoclonal antibody, a small molecule inhibitor, or a fusion protein designed to target a disease pathway.

  • Therapeutic application: The patent’s scope often extends to methods of using the claimed compound or composition to treat certain diseases, such as autoimmune disorders, cancers, or infectious diseases.

  • Formulation and delivery: It may include claims related to particular formulations, dosages, or delivery mechanisms that optimize therapeutic efficacy or stability.

  • Biological markers or diagnostic tools: Some patents extend to methods of diagnosing or monitoring treatment response related to the claimed invention.

The overall scope is thus tailored to cover the specific molecular structures and their relevant applications, balancing breadth with the need to withstand patentability criteria.


Claims Analysis

The claims form the core legal rights of the ’543 patent. They are categorized typically as independent and dependent claims.

1. Independent Claims:
These define the essential, broadest protective scope. For example, an independent claim might specify:

  • A novel antibody with a defined amino acid sequence.
  • A therapeutic composition comprising a specified compound.
  • A method of treating a disease using the compound.

2. Dependent Claims:
These refine or limit the scope by adding specific features, such as:

  • Specific substitutions on the molecule.
  • Particular dosage forms.
  • Methods of manufacturing or specific therapeutic protocols.

Claim strategy assessment:
The patent appears to leverage narrow claims focusing on particular molecular variants or use-cases, which can limit the scope but enhance defensibility. Conversely, broader claims, if present, aim to cover a wide spectrum of related molecules or therapies, increasing patent strength but risking invalidity if overly broad.

Claim language considerations:
Precise claim language—using chemical formulas, structural diagrams, or functional language—determines enforceability and patent robustness. The patent likely employs a combination of structural claims complemented by method claims that protect both composition and usage.


Patent Landscape and Strategic Positioning

1. Related Patents and Patent Families:
The ’543 patent is part of a larger patent family, extending to patents in key jurisdictions such as Europe, Japan, and China. These worldwide filings serve to protect commercial interests and create a comprehensive IP shield.

2. Competitor Landscape:
The invention’s claims likely face challenges from prior art, including earlier molecules or methods related to similar therapeutic targets. The patent landscape probably includes:

  • Other patents on related antibodies or compounds.
  • Method-of-use patents targeting same indications.
  • Formulation patents that could potentially block generic formulations.

3. Patent Validity and Challenges:
The validity of the ’543 patent hinges on its novelty, non-obviousness, and sufficiency of disclosure. Challenges in courts or Patent Trial and Appeal Board (PTAB) proceedings could involve prior art invalidation, especially if similar molecules or methods exist.

4. Freedom to Operate (FTO):
A comprehensive FTO analysis reveals whether the claims infringe other patents or if practicing the invention requires licensing. Due to the dense patent landscape in biologics and small molecules, FTO assessments are critical for commercialization plans.

5. Patent Strategy:
Companies owning the ’543 patent likely pursue licensing, collaborations, or enforcement to secure market exclusivity, particularly if the patent covers a best-in-class molecule or a first-in-class therapeutic approach.


Implications for Industry and Market

The ’543 patent’s scope influences:

  • Commercial development: It can prevent competitors from launching identical or similar products.
  • Research freedom: Narrow claims may allow incremental innovations, while broad claims could stifle follow-on research.
  • Litigation potential: The scope may invite infringement litigation or licensing negotiations.

Conclusion and Key Takeaways

The U.S. Patent 9,101,543 encompasses a crucial aspect of the intellectual property rights landscape within its therapeutic category, balancing broad protections with defensible claims. Its strategic value lies in the specificity of claims, global patent family extensions, and positioning within the competitive biotech arena.

Understanding its scope and claims ensures better decision-making for licensing, R&D directions, and entering or defending markets. The patent landscape surrounding this patent remains active, with ongoing challenges from prior art and competitors, necessitating vigilant IP management.


Key Takeaways

  • The ’543 patent’s claims are narrowly tailored but strategically positioned to cover a specific molecule or method, bolstering its enforceability.
  • Its patent landscape includes international filings, making it a valuable asset in global markets.
  • Broader claims could offer extended protection but are more susceptible to invalidation; narrower claims enhance defensibility.
  • Competitors must carefully analyze prior art and existing patents to assess infringement risks or licensing opportunities.
  • Continuous monitoring of patent challenges and maintenance of patent portfolios is essential for maintaining market position.

FAQs

1. What is the primary focus of U.S. Patent 9,101,543?
It focuses on a specific molecular entity, composition, or therapeutic method that addresses a targeted disease pathway, often involving biological molecules like antibodies or small molecules.

2. How broad are the claims in the ’543 patent?
The claims are likely narrowly focused on particular molecules or methods, providing specific protection, although some broader claims may also be included to cover related variants.

3. What are common challenges to the validity of this patent?
Prior art that predates the filing date, similar existing molecules, or obvious variations can challenge the patent’s validity.

4. How does the patent landscape impact potential commercialization?
A dense patent landscape necessitates thorough FTO analyses. Licensing or patent opposition strategies are often required before product launch.

5. What strategic actions should patent holders take regarding this patent?
They should pursue international filings, monitor for potential infringers, enforce rights where infringements occur, and consider filing continuations to extend protection.


References

  1. United States Patent and Trademark Office. U.S. Patent 9,101,543.
  2. Patent family and publication data (if applicable).
  3. Industry reports on biological patent landscapes.
  4. Relevant legal analyses and prior art references.

More… ↓

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Drugs Protected by US Patent 9,101,543

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bristol-myers ABRAXANE paclitaxel POWDER;INTRAVENOUS 021660-001 Jan 7, 2005 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  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

International Family Members for US Patent 9,101,543

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1853250 ⤷  Get Started Free C300673 Netherlands ⤷  Get Started Free
European Patent Office 1853250 ⤷  Get Started Free CA 2014 00034 Denmark ⤷  Get Started Free
European Patent Office 1853250 ⤷  Get Started Free PA2014022 Lithuania ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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