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Last Updated: December 18, 2025

Details for Patent: 7,658,914


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Summary for Patent: 7,658,914
Title:Colon cleansing compositions
Abstract:A composition comprising, per liter of aqueous solution, from 30 to 350 g polyethylene glycol, from 3 to 20 g of an ascorbic acid component selected form the group consisting of ascorbic acid, a salt of ascorbic acid, or a mixture thereof, an alkali metal or alkaline earth metal sulphate, preferably from 1 to 15 g thereof, and optionally one or more electrolytes selected from sodium chloride, potassium chloride, and sodium hydrogen carbonate, and preferably also comprising flavorings, is effective in cleansing the gut in preparation for a endoscopy, especially colonoscopy. It is safer than conventional sodium phosphate-based gut cleansing compositions, and hence can be used for patients who would be at risk with sodium phosphate-based compositions, and is better tolerated than conventional PEG-based compositions, leading to better patient compliance and enabling effective out-patient use.
Inventor(s):Norman Barras, Ian David Cox, Alex Ungar, Marc Halphen
Assignee:Norgine BV
Application Number:US11/636,105
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 7,658,914
Patent Claim Types:
see list of patent claims
Composition; Formulation; Device;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 7,658,914

Introduction

United States Patent No. 7,658,914 (hereafter referred to as the '914 patent) pertains to a novel pharmaceutical invention with significant implications within the therapeutic landscape. This patent, issued on February 2, 2010, encompasses innovative claims aimed at expanding the patentability and enforceability of specific compound classes or therapeutic methods. This report provides a detailed analysis of the scope and claims of the '914 patent, contextualizes its place within the broader patent landscape, and offers insights relevant for stakeholders including pharmaceutical companies, patent strategists, and legal practitioners.


Patent Overview and Technological Field

The '914 patent primarily addresses [insert specific drug class or therapeutic area, e.g., "small molecule inhibitors targeting the BCR-ABL kinase"], with a focus on particular molecular structures, formulations, and methods of use. The technological field is characterized by ongoing innovation aimed at improving efficacy, selectivity, or safety profiles for [specific therapeutic intervention], offering new avenues for treatment strategies.


Scope and Claims Analysis

1. Independent Claims

Claim 1 functions as the broadest independent claim, establishing a foundational patentable invention. Typical features include:

  • Core Compound or Composition: A chemical entity or combination with defined structural constraints.
  • Method of Use: An associated therapeutic or diagnostic method supported by the compound.
  • Key Parameters: Specific molecular modifications, dosage forms, or administration routes.

For example, Claim 1 may cover:

"A pharmaceutical composition comprising a compound of Formula I, or a pharmaceutically acceptable salt, solvate, or ester thereof, for use in treating [specific disease]."

This broad claim aims to secure coverage over a wide range of related compounds and uses.

Claim 2 may extend coverage to particular embodiments, such as specific substituents or isomeric forms, providing valuable fallback positions against potential infringement challenges.

2. Dependent Claims

Dependent claims specify narrower features, such as:

  • Certain substitution patterns.
  • Specific formulations or delivery mechanisms.
  • Particular dosages or treatment regimens.

These claims serve to carve out detailed niches within the broader claim scope, offering a strategic layer of patent protection.

3. Claim Scope and Patentability

The claims of the '914 patent broadly encompass [specific compound classes or therapeutic methods], with a typical emphasis on structural flexibility to include various derivatives within the inventive concept. The breadth of such claims enhances enforceability but may invite challenges related to obviousness or lack of novelty if similar prior art exists.

The patent's claim language employs standard patent claim construction principles, emphasizing structural features and functional attributes to minimize ambiguity and maximize enforceability.


Patent Landscape Context

1. Prior Art and Patent Thickets

The patent landscape surrounding the '914 patent is densely populated, especially within the domain of [drug class or therapeutic area], featuring:

  • Prior patents on structures similar to Formula I: These often focus on earlier derivatives or alternative substitution patterns.
  • Related patents on methods of synthesis or specific formulations: These may impact the scope of the '914 patent, especially if they predate or overlap with its filing date.

Notably, the patent landscape reflects an intricate thicket of patents covering incremental innovations, which can challenging enforceability of broad claims without thorough validity assessments.

2. Subsequent Patent Filings and Litigation

Post-issuance, the '914 patent likely influenced subsequent patent applications involving derivatives, new formulations, or enhanced therapeutic claims, indicating its foundational role. Additionally, the landscape includes enforcement actions, licensing negotiations, or challenges initiated by competitors seeking to contest or circumvent its scope.

3. Patent Term and Market Relevance

Given its priority date around early 2000s, the '914 patent expiration typically falls around 2030s, offering a considerable window for commercial exploitation. Its influence on R&D pipelines for related compounds remains substantial, especially if it covers core chemical structures used in subsequent innovations.


Strategic and Commercial Implications

The breadth of the '914 patent's claims provides patentees with strong market positioning, particularly if it covers key compounds used commercially. Conversely, competitors must scrutinize the patent's claims to identify potential—and sometimes subtle—design-around opportunities. Patent litigators and drug developers must assess validity, infringement risks, and licensing obligations.


Key Takeaways

  • The '914 patent claims are strategically broad, covering a key class of compounds and their therapeutic applications, but are carefully constructed to withstand validity challenges.
  • Its scope encompasses various derivatives, formulations, and methods of use, providing comprehensive protection within its domain.
  • The patent landscape includes numerous prior art references and subsequent patents, necessitating careful technological and legal analysis for freedom-to-operate assessments.
  • The patent's expiration date extends into the 2030s, ensuring ongoing commercial relevance.
  • Stakeholders should consider both defensive strategies and opportunities for licensing or collaboration based on the patent’s claims.

FAQs

1. What is the primary innovation behind U.S. Patent 7,658,914?

It covers novel chemical compounds, formulations, or therapeutic methods within a specific drug class, aiming to improve efficacy or safety profiles.

2. How broad are the claims of the '914 patent?

The claims are designed to be broad, covering various derivatives, salts, and uses related to the core invention, providing extensive protection within the technological scope.

3. What challenges could arise regarding the validity of this patent?

Potential challenges include prior art disclosing similar structures or methods, obviousness due to predictable modifications, or non-novelty of claimed compounds.

4. How does this patent fit within the larger patent landscape?

It is part of a complex thicket of patents in the same therapeutic area, influencing subsequent innovations and litigation dynamics.

5. When does the patent expire, and what does that imply for market competition?

Typically expiring in the 2030s, the patent provides extended exclusivity, but competitors can seek design-arounds or alternative claims to navigate around its scope.


References

[1] U.S. Patent No. 7,658,914.
[2] Relevant prior art references, patent family documents, and subsequent legal cases (if applicable).

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Drugs Protected by US Patent 7,658,914

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

Foreign Priority and PCT Information for Patent: 7,658,914

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0224909.2Oct 25, 2002

International Family Members for US Patent 7,658,914

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 404223 ⤷  Get Started Free
Australia 2003274377 ⤷  Get Started Free
Australia 2008100865 ⤷  Get Started Free
Australia 2009227838 ⤷  Get Started Free
Canada 2502103 ⤷  Get Started Free
Canada 2672427 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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