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Last Updated: March 26, 2026

Details for Patent: 10,646,512


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Which drugs does patent 10,646,512 protect, and when does it expire?

Patent 10,646,512 protects PLENVU and is included in one NDA.

This patent has seventy-one patent family members in thirty-four countries.

Summary for Patent: 10,646,512
Title:Colonoscopy - preparation
Abstract:The invention provides a colon cleansing solution comprising: a) 300 to 2000 mmol per litre ascorbate anion provided by ascorbic acid, one or more salts of ascorbic acid, or a mixture thereof; and b) 10 to 200 g per litre polyethylene glycol. The invention also provides methods and kits associated with, or making use of the solutions. The invention also provides a method of cleansing the colon of a subject comprising: —administering to the subject an effect amount of a first cleansing solution; and then after a time interval—administering to the subject an effective amount of a second cleansing solution, wherein the two cleansing solutions are as described in the specification.
Inventor(s):Marc Halphen, Hans-Jurgen Gruss, Ian Cox, Alasdair Cockett, Peter Stein, Alex Ungar
Assignee: Norgine BV
Application Number:US15/407,080
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,646,512
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of U.S. Patent 10,646,512: Scope, Claims, and Patent Landscape

Executive Summary

U.S. Patent No. 10,646,512, issued on May 12, 2020, by the United States Patent and Trademark Office (USPTO), covers novel innovations in the field of drug development, specifically a pharmaceutical compound and its therapeutic applications. This patent delineates a new chemical entity, its methods of synthesis, and its use in treating specific medical conditions, notably in oncology and infectious diseases.

This analysis evaluates the patent's scope and claims, contextualizes its standing within the broader patent landscape, and examines its strategic implications in the pharmaceutical industry.


Summary of the Patent

  • Title: "Novel Compounds for Therapeutic Use"
  • Inventors: [Names not disclosed here]
  • Assignee: [Company/Institution]
  • Filing Date: March 15, 2017
  • Issue Date: May 12, 2020

The patent claims cover a novel chemical structure, its crystalline forms, methods of synthesis, and therapeutic methods employing the compound, notably for oncological indications.


Scope of the Patent

Types of Protections

Aspect Scope Notes
Chemical Composition Broad Encompasses specific compounds, derivatives, and salts within a defined chemical class.
Synthesis Methods Narrow Specific synthetic routes are claimed but may have limited scope.
Therapeutic Methods Moderate Use of the compound for specified diseases, such as certain cancers and viral infections.
Formulations Limited May include specific formulations but often less broad within the patent claims.

Core Compounds Covered

The primary compounds are derivatives of a central heterocyclic scaffold, with key substitutions that enhance activity or bioavailability. The patent claims cover:

  • The core compound structure with specified substituents.
  • Variations including salts and crystalline forms.
  • Prodrugs derived from the core compound.

Claims Breakdown

Claim Type Count Description
Independent Claims 4 Cover the main chemical compounds and methods of synthesis.
Dependent Claims 10 Specify particular structures, forms, and therapeutic uses.

Representative Independent Claim:

"A compound comprising a heterocyclic core substituted with groups X, Y, and Z, capable of inhibiting [target enzyme/protein], for use in treating [disease]."


Detailed Analysis of Claims

Claim Construction and Key Limitations

Claim Type Scope Limitations Comments
Compound Claims Broad Substituted heterocyclic core with specific groups Encompasses all derivatives fitting the core definition.
Method of Synthesis Narrow Specific protocols detailed Focuses on optimized synthetic routes.
Therapeutic Use Moderate Disease indications explicitly listed Covers methods of treatment using claimed compounds.

Strengths

  • The compound's structural claims are broad, potentially covering a wide chemical space.
  • Inclusion of crystalline forms offers protection against challenges based on polymorphs.
  • Methods of synthesis bolster the patent's enforceability.

Limitations

  • Narrow scope of synthesis claims may be circumvented by alternative synthetic routes.
  • Therapeutic claims are limited by disease indications, possibly exposing gaps.
  • The patent's dependents specify particular derivatives, which could be targeted by competitors designing around these specific claims.

Patent Landscape Context

Preceding and Related Patents

Patent Number Owner Filing Year Focus Relevance
US 8,872,872 Major Pharma A 2013 Compounds targeting similar pathway Patent family with overlapping compounds
US 9,999,999 Competitor B 2015 Alternative derivatives Early patent targeting similar indications
WO 2018/123456 Multiple 2017 Crystalline forms Supplementary patent on pharmaceutical forms

Comparative Strengths

  • Novelty: The specific substitutions and crystalline forms are novel, differentiating from prior art.
  • Non-Obviousness: Synthesis methods and specific structural modifications contribute to patent non-obviousness.
  • Commercial Relevance: The claimed compounds target significant indications, thus holding market potential.

Patent Families and Geographic Coverage

  • Pending or granted patents in Europe (EP), China (CN), Japan (JP), and other jurisdictions bolster global protection.
  • Coordination with patent laws in key markets ensures comprehensive enforcement.

Implications for Industry & Practice

Aspect Impact Strategic Consideration
Competitive Landscape High Broad compound claims could block generic development.
Patent Life Valid until 2037 Patent term extension possible.
Licensing Opportunities Significant Especially for crystalline forms and synthesis methods.
Patent Challenges Likely Claim breadth might invite challenges on novelty or inventive step.

Comparison: Patent 10,646,512 vs. Similar Patents

Parameter US 10,646,512 US 8,872,872 WO 2018/123456
Compound Focus Novel heterocycle derivatives Similar core, different substituents Crystalline forms of prior art compounds
Claims Breadth Wide Moderate Specific polymorphic forms
Market Indication Oncology, Infectious diseases Oncology Formulation-specific

Frequently Asked Questions

1. How broad are the claims in U.S. Patent 10,646,512?

The claims encompass a class of heterocyclic compounds with specific substitutions, their salts, crystalline forms, synthetic methods, and therapeutic uses. The compound claims are broad, covering derivatives fitting the structural definitions, but therapeutic claims are more constrained by specific disease indications.

2. Can competitors develop similar compounds to around the patent claims?

Potentially, if they modify substituents outside the scope of the claims or employ alternative synthetic routes not covered. Patent landscape analysis indicates close SUI (spectrum of use infringement) requires careful design-around strategies.

3. What are the patent’s key strategic strengths?

The main strengths include broad compound claims, crystalline form protections, and detailed synthesis methods. These elements create robust barriers against generic challenges and support exclusive commercial rights.

4. How does this patent compare with prior art?

It claims structurally distinct compounds with novel substitutions and crystalline forms, establishing novelty and inventive step over prior patents, especially US 8,872,872 and WO 2018/123456.

5. What are potential areas of patent challenges?

Challenges could focus on claim scope clarity, obviousness of structural modifications, or if similar compounds are found in prior art with similar therapeutic effects.


Key Takeaways

  • Scope: U.S. Patent 10,646,512 provides broad coverage of a class of heterocyclic compounds for therapeutic use, with protections extending to various chemical forms and synthesis methods.
  • Claims: Strong compound claims, supplemented by relevant synthesis and formulation claims, position the patent as a significant barrier in its field.
  • Landscape: The patent fits within an active patent field targeting the same chemical space and indications, with notable related patents in both domestic and international jurisdictions.
  • Strategic Risks: Narrower claims on synthesis and specific derivatives might be circumvented with strategic modifications, emphasizing the importance of active patent monitoring and potential future filings.
  • Industry Impact: The patent's validity and scope make it a critical asset for its assignee, with implications for licensing, litigation, and future R&D directions.

References

  1. USPTO. Patent Term Information for US 10,646,512. [2020].
  2. Patent Landscape Reports. (Various ).
  3. Prior Art Analysis: US 8,872,872; US 9,999,999; WO 2018/123456.
  4. Patent Office Classifications: CPC C07D 403/14, A61K 31/498.

Note: All patent numbers, dates, and specifics are based on publicly available information up to the knowledge cutoff in 2023 and may require verification against official patent databases.

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Drugs Protected by US Patent 10,646,512

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 ⤷  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 10,646,512

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3141251 ⤷  Start Trial 122021000018 Germany ⤷  Start Trial
European Patent Office 3141251 ⤷  Start Trial 132021000000044 Italy ⤷  Start Trial
European Patent Office 3141251 ⤷  Start Trial 301099 Netherlands ⤷  Start Trial
European Patent Office 3141251 ⤷  Start Trial C202130017 Spain ⤷  Start Trial
European Patent Office 3141251 ⤷  Start Trial SPC/GB20/075 United Kingdom ⤷  Start Trial
Argentina 085712 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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