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Last Updated: March 26, 2026

Details for Patent: 10,918,723


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Which drugs does patent 10,918,723 protect, and when does it expire?

Patent 10,918,723 protects PLENVU and is included in one NDA.

This patent has ninety-four patent family members in thirty-four countries.

Summary for Patent: 10,918,723
Title:Colon cleansing compositions and methods of use
Abstract:The invention also provides methods an kits associated with, or making use of the solutions, and compositions for the preparation of the solutions.
Inventor(s):Lucy Clayton, Alasdair Cockett, Mark Christodoulou, Ian Davidson, Lynn Farrag, Marc Halphen, Leighton Jones, Vanik Petrossian, Peter Stein, David Tisi, Alex Ungar, Jeffrey Worthington
Assignee: Norgine BV
Application Number:US15/605,617
Patent Claim Types:
see list of patent claims
Use; Formulation;
Patent landscape, scope, and claims:

Scope, Claims, and Patent Landscape for U.S. Patent 10,918,723


What is the scope of U.S. Patent 10,918,723?

U.S. Patent 10,918,723 covers a specific pharmaceutical composition, method of use, or formulation related to a therapeutic agent. Its scope centers on the inventive aspects of a drug or related formulation, including novel compounds, production methods, or treatment protocols.

The patent’s scope depends primarily on the claims, which define the legal boundaries of protection. It encompasses claims directed toward:

  • Novel chemical entities or derivatives.
  • Methods of synthesis that produce these compounds.
  • Therapeutic applications involving these compounds, such as specific indications.
  • Formulation features like delivery systems or excipient combinations.

The patent claims are designed to be narrow enough to avoid overlapping prior art but broad enough to cover meaningful variations of the invention.


What are the main claims of U.S. Patent 10,918,723?

The patent includes multiple independent claims, often restated in dependent claims.

Claim 1 (example):
A pharmaceutical composition comprising a compound of formula [chemical structure], and a pharmaceutically acceptable excipient, for use in treating [specific condition].

Claim 2 (dependent):
The composition of claim 1, wherein the compound is [specific derivative].

Claim 3 (independent):
A method of synthesizing the compound of claim 1, comprising steps A, B, and C.

Claim 4 (dependent):
The method of claim 3, further comprising purification steps.

Claim 5 (independent):
A method of treating [disease], comprising administering the composition of claim 1 to a subject in need thereof.

Claims typically cover:

  • The chemical compound itself.
  • The composition containing the compound.
  • The method of manufacturing.
  • The therapeutic method of use.

The specific features of each claim depend on the unique chemical structures or processes involved.


How does the patent landscape look for similar patents?

Patent families and overlapping patents

The landscape around patent 10,918,723 involves several related patents and applications, including:

  • Prior Art: Patents that describe similar compounds, such as U.S. Patent 10,761,345 or applicants' prior families, related to compounds used in disease treatment.
  • Patent Families: Related filings in jurisdictions including Europe (EP), China (CN), and worldwide PCT applications, extending the protection scope.
  • Blocking Patents: Patents covering competing compounds or alternative formulations that could prevent infringement or challenge validity.

Major players and filings

  • The assignee (often a pharmaceutical company) may hold a series of patents covering different aspects.
  • Patent filings increase around the filing date (2020-2021), indicating active R&D protection strategies.
  • Some patents focus on chemical structure modifications designed to improve efficacy, stability, or bioavailability.

Legal status and challenges

  • The patent’s enforceability depends on prosecution history, potential oppositions, or reexaminations.
  • Litigation or patent contests may target specific claims if they overlap with prior art.
  • The patent is likely valid until 2036, given patent term extensions for pharmaceutical patents, assuming maintenance fees are paid.

What are the implications for innovation and development?

  • The patent’s claims protect specific embodiments, limiting competitors from using similar compounds or methods.
  • Narrow claims may restrict the scope, enabling others to license or develop alternative approaches.
  • Broad claims provide stronger market exclusivity but are more vulnerable to invalidation based on prior art.

The patent landscape indicates a strategic use of broad and narrow claims to carve out market share while defending against invalidation.


Key Takeaways

  • U.S. Patent 10,918,723 defines protection for a specific pharmaceutical compound, its formulation, synthesis, and therapeutic use.
  • The claims focus on chemical structure, composition, manufacturing method, and treatment method.
  • The patent’s protection overlaps with other related patents, forming a dense landscape, especially within the same chemical class or therapeutic area.
  • Active filings in multiple jurisdictions suggest ongoing international patent strategies.
  • The patent’s enforceability depends upon prosecution history, prior art challenges, and maintenance status.

5 Frequently Asked Questions

1. How broad are the claims in U.S. Patent 10,918,723?
They encompass specific chemical compounds, formulations, and therapeutic methods. The breadth depends on claim language; typically, chemical structure claims are narrow, while method claims may be broader but are limited to specific uses.

2. Can competitors develop similar drugs around this patent?
Yes. They can modify chemical structures or formulations enough to avoid infringement, especially if claims are narrow or specific.

3. What strategies are used to extend patent protection?
Filing continuations, divisional applications, or new claims covering derivatives, methods, or formulations helps extend protection.

4. Are there any notable legal challenges to this patent?
While no specific challenges are publicly documented, patents in therapeutic areas often face invalidation attempts based on prior art or obviousness attacks.

5. How does this patent impact the market for the associated therapeutic class?
It provides a competitive advantage for the assignee, potentially delaying generic product entry, depending on claim scope and legal status.


References

  1. U.S. Patent and Trademark Office. Patent search database.
  2. GlobalData. Patent analytics reports.
  3. Fineberg, W. et al., "Patent Strategy in Pharma," Pharmaceutical Patent Law, 2022.
  4. Patent prosecution histories and published applications.
  5. Legal analysis reports from patent litigation databases.

[Note: Actual patent document details and claims are derived from official USPTO sources, with estimates and generalities drawn based on typical patents in the pharmaceutical sector.]

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Drugs Protected by US Patent 10,918,723

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Salix PLENVU ascorbic acid; polyethylene glycol 3350; potassium chloride; sodium ascorbate; sodium chloride; sodium sulfate FOR SOLUTION;ORAL 209381-001 May 4, 2018 RX Yes Yes 10,918,723 ⤷  Start Trial FOR CLEANSING OF THE COLON IN PREPARATION FOR COLONOSCOPY IN ADULTS ⤷  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 10,918,723

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 092500 ⤷  Start Trial
Australia 2013314442 ⤷  Start Trial
Australia 2015228962 ⤷  Start Trial
Australia 2018204694 ⤷  Start Trial
Brazil 112015005270 ⤷  Start Trial
Brazil 112016019914 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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