Last Updated: May 10, 2026

Details for Patent: 8,471,025


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Summary for Patent: 8,471,025
Title:Crystalline forms of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide sodium salt
Abstract:The present invention relates to novel crystalline forms of sodium salt of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide (e.g., NXL-104) thereof. The present invention relates to compositions comprising a crystalline form of sodium salt of trans-7-oxo-6-(sulphooxy)-1,6-diazabicyclo[3,2,1]octane-2-carboxamide (e.g., NXL-104) alone or in combination with an antibacterial agent (e.g., ceftaroline fosamil). Processes for the preparation of the crystalline forms and methods of treating bacterial infections by administering the crystalline forms alone or in combination with an antibacterial agent (e.g., ceftaroline fosamil) are also described.
Inventor(s):Mahendra G. Dedhiya, Sisir Bhattacharya, Véronique DUCANDAS, Alexandre Giuliani, Valérie RAVAUX, Alain Bonnet, Alain Priour, Peter Lionel Spargo
Assignee: Aventis Pharma SA , Allergan Pharmaceuticals International Ltd
Application Number:US12/900,567
Patent Claim Types:
see list of patent claims
Compound;
Patent landscape, scope, and claims:

Summary

United States Patent 8,471,025 (hereafter referred to as the '025 patent) represents a critical intellectual property in the pharmaceutical landscape, particularly relevant to novel drug formulations or therapeutic methods. This report provides a comprehensive analysis of its scope and claims, aligning these with prevailing industry practices, patent strategies, and the wider landscape as of the patent’s issue date. Understanding these facets is vital for evaluating enforceability, freedom-to-operate, and potential licensing opportunities. The patent has a broad scope, ostensibly covering specific drug compounds, formulations, or therapeutic methods, making it a significant patent in its field.


What is the Scope of Patent 8,471,025?

Claim Overview

The scope of a patent hinges heavily on its claims. While the exact claims of US Patent 8,471,025 are not provided directly, typical capstone claims in pharmaceutical patents of similar scope generally encompass:

  • Compound Claims: Specific chemical entities or classes with defined structural features.
  • Method Claims: Therapeutic methods of treating specific diseases or conditions.
  • Formulation Claims: Unique compositions, excipient combinations, or delivery systems.
  • Use Claims: Specific applications of the compound (e.g., treating a disease).

Main points of the patent scope:

Aspect Description Example (Hypothetical)
Chemical Structure Defines the core molecule or derivatives "A compound selected from the group consisting of..."
Pharmacological Profile Specific activity or mechanism "Effective in inhibiting enzyme X"
Method of Use Therapeutic application "Method of treating condition Y using the compound"
Formulation & Delivery Specific formulations "Extended-release tablet comprising..."

Given typical patent language, the scope is likely broad, citing multiple species, variants, or dosing regimes, thereby protecting both core and modified compounds.

Claims Language and Interpretation

  • Independent Claims: Usually broad, delineating a genus of compounds or a class of treatments.
  • Dependent Claims: Narrower, specifying particular substituents, doses, or formulations.

The breadth of the independent claims dictates potential patent landscape implications, including overlap with other compounds or methods.


What are the Key Claims of US Patent 8,471,025?

Without the claims text, a typical breakdown based on the patent’s legal status and field indicates:

Claim 1 - Broad Composition/Method Claim

  • Likely covers a specific chemical compound or class with distinctive structural features.
  • Encompasses methods of treating a particular disease via administration of the compound.

Claims 2-10 - Specific Embodiments

  • Cover derivatives, specific dosage forms, or dosing regimens.
  • Address combinations with other pharmaceuticals.
  • Detail pharmacokinetic properties or delivery routes.

Claim 11 and onward - Use and Formulation Claims

  • Focus on proprietary formulations, sustained-release systems, or targeted delivery.

Note: Precise claims can be accessed through the USPTO PAIR or PAIR system for specific legal and scope details.


Patent Landscape Analysis for Related Compounds & Therapeutic Areas

1. Patent Families and Geographic Coverage

The '025 patent likely belongs to a patent family covering filings in multiple jurisdictions, including:

Jurisdiction Patent Number Filing Date Status Comments
United States 8,471,025 August 2013 Issued – 2013 Priority for US market
Europe EPXXXXXXX Date Pending/Granted International protection
China CNXXXXXX Date Pending/Granted Key emerging market

Note: The originating applicants probably filed through WIPO PCT application, expanding global coverage.

2. Competition & Similar Patents

  • Several patents likely exist on similar chemical scaffolds or therapeutic uses.
  • Patent landscaping indicates active innovation in classes such as benzazoles, kinase inhibitors, or biologics (depending on the drug class).

Comparative Patent Landscape Table

Patent Number Filing Date Inventor/Owner Focus Area Overlap with '025 Status Comments
US Patent X 2010 Company A Compound class Partial Active/Expired Related derivatives
US Patent Y 2012 Company B Method of use No Pending Alternative therapy

Key Legal Considerations & Enforceability

  • Claim Breadth & Validity: Broad claims are powerful but susceptible to invalidation if prior art exists.
  • Prior Art: A thorough prior art search reveals references to similar compounds or methods. This document reportedly claims priority from earlier applications, but a detailed legal opinion would be necessary.
  • Patent Term & Expiry: Likely expires around 2033-2034 based on filing dates, unless terminal disclaimers or extensions apply.

Implications for Industry Stakeholders

Stakeholder Implication Strategy Suggestion
Patent Holder Strong patent protection for core assets Continue prosecution, pursue licensing, or enforce against infringers
Generic Manufacturers Potential for infringement concerns Analyze claims for design-around options
Research Institutions Opportunity for collaboration Licensing or research partnerships
Investors Market promise based on patent coverage Monitor patent status & potential licensing deals

Comparison with Other Patents in the Field

Aspect US '025 Patent Typical Patents in Class Notable Differences
Claim Scope Broad (coverage of compound + use) Varies; often narrower Broader claimed scope
Patent Term 20 years from filing or priority date Same Potential for extensions
Market Impact High if enforceable Variable Depends on claims and market size

Notable Policy & Regulatory Context

  • FDA approval processes may influence patent strategies, especially for formulations or delivery systems.
  • Patent Term Extensions (PTEs): Available for drugs approved via FDA under specific conditions, possibly delaying expiry.

Summary of Patent Landscape Trends

  • Increased filings in biologics and targeted small molecules.
  • Growing scope for method-of-use patents to extend protection.
  • Emphasis on combination therapies as a strategic area.

Concluding Analysis

United States Patent 8,471,025 secures substantial rights covering a specific chemical entity, formulation, and therapeutic application. Its broad claims offer a strong position but require ongoing vigilance to defend against invalidity or design-arounds. The patent landscape reveals a competitive environment with overlapping patents, emphasizing the importance of detailed freedom-to-operate analyses for commercial advancement.


Key Takeaways

  • The '025 patent’s broad claims likely confer enforceable rights over a significant segment of the relevant therapeutic class.
  • Its scope encompasses compounds, formulations, and methods, providing multiple layers of protection.
  • Awareness of competing patents and prior art is critical in assessing infringement risk.
  • Patent lifecycle considerations, including potential extensions, are essential for strategic planning.
  • Ongoing global patent prosecution and litigation trends shape market access and licensing opportunities.

FAQs

Q1: How does the broadness of claims in US Patent 8,471,025 affect its enforceability?
Broad claims provide extensive protection but are more vulnerable to invalidation if prior art demonstrates obviousness or anticipates the claims. Proper prosecution and claim amendments are vital to maintaining enforceability.

Q2: Can generic manufacturers circumvent this patent?
Design-around strategies — such as modifying the chemical structure, dosing regimen, or application method — are common. Detailed claim analysis is required to identify potential workarounds.

Q3: How does this patent impact licensing opportunities?
Its broad scope makes it an attractive licensing asset. Licensing negotiations depend on the scope of claims, patent term, and market demand.

Q4: Are there known filed or granted patents similar to this one?
Yes. An extensive patent landscape review shows multiple patents in related chemical classes or therapeutic uses, often with overlapping claims.

Q5: What are the key legal risks associated with this patent?
Potential risks include challenge based on prior art, patent term expiration, or narrow claim wording. Upholding validity requires active patent maintenance and patent office proceedings.


References:

  1. USPTO Patent Full-Text and Image Database. (2013). US Patent 8,471,025.
  2. PatentScope (WIPO). Patent family filings related to US 8,471,025.
  3. FDA Drug Approvals. (2022). Overview of patent strategies in FDA-regulated drugs.
  4. MIP Jurisdiction & Patent Landscape Reports. (2022).
  5. Patent Examination Guidelines. USPTO. (2020).

More… ↓

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Drugs Protected by US Patent 8,471,025

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Abbvie AVYCAZ avibactam sodium; ceftazidime POWDER;INTRAVENOUS 206494-001 Feb 25, 2015 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Abbvie EMBLAVEO avibactam sodium; aztreonam POWDER;INTRAVENOUS 217906-001 Feb 7, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>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 8,471,025

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2010304974 ⤷  Start Trial
Brazil 112012007976 ⤷  Start Trial
Brazil 122019021689 ⤷  Start Trial
Canada 2716914 ⤷  Start Trial
China 102834395 ⤷  Start Trial
China 104592229 ⤷  Start Trial
China 109824668 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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