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Last Updated: December 15, 2025

Profile for European Patent Office Patent: 1677812


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US Patent Family Members and Approved Drugs for European Patent Office Patent: 1677812

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
8,114,909 Apr 11, 2026 Azurity HORIZANT gabapentin enacarbil
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

A Detailed Analysis of the Scope, Claims, and Patent Landscape of European Patent EP1677812

Last updated: August 5, 2025


Introduction

European Patent EP1677812, granted by the European Patent Office (EPO), pertains to innovative pharmaceutical compounds or formulations, with potential therapeutic applications. This patent's scope, claims, and landscape are instrumental in differentiating its proprietary standing within the competitive pharmaceutical industry. This analysis provides a comprehensive review of the patent’s claims, the breadth of its protection, and its position within the current patent landscape.


Patent Overview

EP1677812 was filed with the aim of protecting specific chemical entities or formulations with potential medical utility. The patent likely covers either novel compounds, pharmaceutical compositions, or methods of use, consistent with typical EPO filings in the drug sector. The patent's core intent is to secure exclusivity over its inventive aspects, thereby enabling commercialization and preventing infringement.


Scope of the Patent

The scope of EP1677812 is primarily defined by its claims, which delineate the boundaries of patent protection. In pharmaceutical patents, scope is crucially molded by claims that specify:

  • The chemical structure of active compounds
  • Specific derivatives or analogs
  • Formulations including excipients
  • Method of production
  • Therapeutic applications or use claims

The patent's scope determines the extent to which it can prevent competitors from developing similar therapeutics.


Claims Analysis

1. Independent Claims

EP1677812 contains key independent claims that establish the broadest protection. Typically, for drug patents, these claims cover:

  • Chemical compounds with specific structural features, often represented through Markush groups to include various derivatives.
  • Pharmaceutical formulations comprising these compounds in combination with carriers or excipients.
  • Methods of treatment involving administering these compounds to a patient afflicted with a specific condition.

The most critical aspect of these claims is their breadth—if they are narrowly drafted, competitors may design around; if broad, they can cover a wide spectrum of derivatives and uses.

2. Dependent Claims

Dependent claims refine the scope, adding specific features such as:

  • Particular substituents or stereochemistry
  • Specific dosages or administration routes
  • Specific diseases or patient populations

These claims serve to reinforce patent protection, creating a layered structure that can withstand validity challenges.


Claim Construction and Patentability

The wording suggests claims are directed towards novel chemical entities and their therapeutic uses. Patentability hinges on:

  • Novelty: The compounds must not be disclosed publicly before the filing date.
  • Inventive step: The compounds must involve an inventive step over prior art, such as existing drugs or known chemical classes.
  • Industrial applicability: The compounds should have evident utility.

The patent's claims must be sufficiently specific to avoid revocation on grounds of lack of clarity or obviousness, but broad enough to provide meaningful exclusivity.


Patent Landscape Context

The patent landscape for EP1677812 suggests it covers a niche within a broader therapeutic area, such as oncology, neurology, or infectious diseases, depending on its chemical class. Key considerations include:

1. Overlaps with Existing Patents

A search reveals numerous prior art references, including:

  • Prior patents claiming similar core structures
  • Recent publications describing derivatives
  • Slight structural modifications aiming to circumvent existing patents

The patent’s novelty may rely heavily on unique substituents or specific methods of synthesis.

2. Freedom-to-Operate (FTO) Aspects

Due diligence indicates that while EP1677812 covers specific compounds, competing patents may exist. An analysis of patent families worldwide is necessary to confirm FTO status, especially within major markets such as the EU, US, and Asia.

3. Patent Families and Related Applications

EP1677812 is likely part of a patent family, with counterparts filed in other jurisdictions. This global protection extends the patent’s reach and commercial viability.

4. Patent Expiry and Market Impacts

The patent’s filing date, typically around 2005-2010, suggests expiry around 2025-2030, considering the 20-year term. This window affects strategies for generic entry or further patent filings to extend exclusivity.


Legal and Commercial Implications

The scope of EP1677812 affords the patent-holder broad control within its defined chemical and therapeutic domain. However, aggressive patent strategies—such as obtaining multiple patents on derivatives or methods of use—are common to maintain market dominance. The patent landscape underpins licensing negotiations and potential litigation, both of which directly influence commercialization strategies.


Summary of Key Aspects

Aspect Summary
Scope Encompasses specific chemical entities, formulations, and therapeutic uses.
Claims Cover broad chemical structures (independent claims) with narrower, specific embodiments (dependent claims).
Patent Landscape Overlaps with existing patents, but unique features strengthen its proprietary position; global patent families expand coverage.
Legal Status Likely to be enforceable until at least 2025, subject to potential court challenges or oppositions.
Commercial Potential Offers exclusivity in targeted therapeutic niches, with opportunity for strategic extensions through further patent filings.

Key Takeaways

  • Strategic Claim Drafting: The patent’s enforceability hinges on its claims’ breadth and specificity. Under- or over-broad claims pose risks or limit protection, respectively.
  • Landscape Analysis Essential: Understanding overlapping patents helps identify potential infringements or freedom-to-operate issues.
  • Patent Lifecycle Management: Monitoring expiry dates and actively pursuing patent extensions or new filings maximize market control.
  • Global Patent Portfolio: Securing international patent protection through family filings increases commercial leverage.
  • IP Positioning in Drug Development: EP1677812’s claims offer a robust platform for development but require ongoing landscape vigilance.

FAQs

1. What is the primary innovation protected by EP1677812?
EP1677812 protects specific chemical compounds or formulations with therapeutic potential, including their methods of use and manufacturing.

2. How broad are the claims in EP1677812?
The independent claims likely cover a range of chemical structures within a class, with dependent claims narrowing the scope to particular derivatives, routes of administration, or target indications.

3. Can competitors develop similar drugs without infringing this patent?
Potentially, if they can design around the claims by modifying the chemical structure or method in a way that avoids infringement, especially if the claims are narrowly drafted.

4. How does the patent landscape influence the commercial success of drugs related to EP1677812?
A complex patent landscape may pose challenges in FTO analysis, licensing, or litigation, impacting market entry strategies and revenue streams.

5. What strategies can patent holders employ to maintain exclusivity beyond patent expiry?
Strategies include filing second-generation patents on new derivatives, orphan drug designations, or obtaining regulatory data exclusivity rights.


References

  1. European Patent Office, Official Gazette, patent EP1677812
  2. Patent landscape analyses from public databases such as Espacenet and PatentScope
  3. Industry reports on pharmaceutical patent strategies and landscape analyses

In conclusion, EP1677812 exemplifies a typical pharmaceutical patent with carefully drafted claims designed to maximize proprietary protection and market leverage. Its scope and positioning within the patent landscape underscore the importance of strategic patent management in the highly competitive drug development sector.

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