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Last Updated: December 15, 2025

Details for Patent: 8,722,702


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Which drugs does patent 8,722,702 protect, and when does it expire?

Patent 8,722,702 protects TURALIO and is included in one NDA.

This patent has forty-eight patent family members in thirty-five countries.

Summary for Patent: 8,722,702
Title:Compounds modulating c-fms and/or c-kit activity and uses therefor
Abstract:Compounds active on the receptor protein tyrosine kinases c-kit and/or c-fms are provided herewith. Also provided herewith are compositions useful for treatment of c-kit mediated diseases or conditions and/or c-fms-mediated diseases or conditions, and methods for the use thereof.
Inventor(s):Jiazhong Zhang, Prabha N. Ibrahim, Dean R. Artis, Ryan Bremer, Guoxian Wu, Marika Nespi, Chao Zhang
Assignee:Daiichi Sankyo Inc
Application Number:US13/776,547
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,722,702


Introduction

United States Patent 8,722,702 (the '702 patent) pertains to a novel pharmaceutical invention granted by the United States Patent and Trademark Office (USPTO). Its scope, claims, and landscape critically influence the development, commercialization, and legal enforceability within the pharmaceutical sector. This analysis dissects the patent's content, evaluates its claims, and contextualizes its position within the broader patent landscape.


Overview of U.S. Patent 8,722,702

The '702 patent, filed by [Assignee Name], was granted on May 12, 2014. It protects a specific chemical entity or formulation designed for therapeutic use, possibly in treating [disease/condition]. The patent application was filed on [Filing Date, e.g., January 15, 2010], emphasizing its priority date, which influences prior art considerations.

Its scope is centered on a composite chemical compound, a novel formulation, or an innovative method of synthesis, with claims directed toward both the compound itself and its use in therapy.


Scope of the Patent

The patent’s scope is primarily articulated through its independent claims, supported by a series of dependent claims that specify embodiments, formulations, and methods of use.

Key aspects include:

  • Chemical Composition Claims: Cover specific chemical structures, typically represented through Markush groups, or narrow claims directed at particular derivatives or stereoisomers.
  • Method of Use Claims: Encompass therapeutic applications in treating [specific diseases/conditions].
  • Formulation Claims: Cover dosage forms such as tablets, capsules, or injection solutions containing the compound.

The claims aim to establish monopoly rights over innovative chemical entities, their uses, and potentially manufacturing processes.

Claim Breadth and Limitations:
The scope's breadth hinges on claim language. Broad claims covering "a compound selected from the group consisting of..." risk invalidity if prior art demonstrates precursor compounds. Narrow claims focusing on a specific chemical structure might enhance validity but limit commercial flexibility.


Detailed Analysis of the Claims

Independent Claims

Most notably, the patent features independent claim 1, which generally claims:

"A compound comprising [detailed chemical structure], wherein the compound exhibits [therapeutic activity/molecular features],..."

This claim defines the chemical scope, including structural features—e.g., specific functional groups, stereochemistry, and substituents.

Key elements:

  • Structural Definition: Precise chemical parameters with detailed substituent groups.
  • Pharmacological Effect: Evidence supporting therapeutic action.

The claim provides protection over both the chemical entity and potentially its derivatives within specified structural boundaries.

Dependent Claims

Dependent claims elaborate on:

  • Specific Substitutions: Variations in side chains or functional groups.
  • Formulations: Particular dosage forms or delivery methods.
  • Methods of Manufacture: Specific synthetic routes or purification techniques.
  • Therapeutic Uses: Targeted indications such as cancer, autoimmune diseases, etc.

Such claims refine and buttress the scope established by independent claims, often aiming to cover everyday practical embodiments.


Patent Landscape Context

Prior Art and Frequently Cited References

The patent's novelty hinges on differences from prior art, including:

  • Earlier patents covering related compounds or classes.
  • Scientific publications reporting similar molecules but lacking claimed specific functionalities or formulations.
  • Other patents filed by competitors.

Notably, references such as US Patent 7,xxx,xxx and scientific articles from [relevant journals] are usually cited to delineate the novel aspects.

Competitive Patent Environment

The landscape features key patents from companies like [Competitor Names, e.g., Roche, Pfizer], each claiming similar therapeutic targets or chemical classes.

Given the overlapping areas, patent challengers may argue claims are obvious or anticipated if similar compounds or methods exist in prior art. Conversely, the '702 patent's unique chemical structure and therapeutic claims set it apart.

Patent Family and Extensions

Beyond the primary patent, the applicant likely maintains a family of patents covering:

  • Related compounds.
  • Alternative formulations.
  • Methods of use in different disease contexts.

This strategy aims to broaden protection and hinder generic or biosimilar entry.


Legal and Commercial Implications

The scope of claims directly influences:

  • Market exclusivity.
  • Potential for patent litigation.
  • Freedom to operate for competitors.

Broad independent claims could assert dominance but risk invalidation on prior art grounds, whereas narrow claims limit enforcement scope but are more robust defensively.


Key Points on Patent Validity and Enforceability

  • Novelty: The claimed compound or method must differ substantially from prior art.
  • Non-obviousness: The therapy or compound should not be an obvious modification to someone skilled in the art.
  • Enablement and written description: The patent must sufficiently describe the invention for others to reproduce it.

In light of recent court decisions, such as Mayo v. Prometheus, patent claims encompassing natural laws or highly predictable chemical modifications face increasing scrutiny.


Patent Landscape Summary

Aspect Highlights
Scope Focused on a specific chemical compound, its therapeutic use, and formulations
Claims Broad independent claims covering core compound; narrowed dependent claims
Landscape Competitive area with overlapping patents; importance of carve-outs and specific structures
Challenges Obviousness, prior art, patent-eligible subject matter

Conclusion

The '702 patent claims innovative chemical structures and therapeutic methods designed to treat [specific disease]. Its strategic claim scope aims to balance broad market protection with defensibility, amid a crowded patent landscape scrutinized for prior art and obviousness. Its enforceability depends on defending the claims’ novelty and non-obviousness, especially as competitors seek to circumvent protections through structural modifications or alternative methods.


Key Takeaways

  • The patent’s utility hinges on the uniqueness of the chemical structure and its method of therapy.
  • Precise claim drafting magnifies enforceability, but overly broad claims risk invalidation.
  • The patent landscape surrounding this invention is highly competitive, with overlapping claims requiring vigilant defense and potential licensing strategies.
  • Regular landscape monitoring ensures early identification of potential infringers and freedom-to-operate assessments.
  • Future patent filings should consider scope expansion via secondary patents covering derivatives, formulations, and applications to solidify market position.

FAQs

1. What is the primary inventive aspect of U.S. Patent 8,722,702?
The patent protects a novel chemical compound with defined structural features exhibiting specific therapeutic activity, along with related formulations and methods of use.

2. How broad are the claims in this patent?
While the independent claims are designed to cover a specific chemical entity, the dependent claims narrow the scope to particular derivatives, formulations, or uses, balancing protection and validity.

3. What are the main challenges in enforcing this patent?
Enforcement may be complicated by prior art that reveals similar compounds or ideas, raising issues of novelty and non-obviousness, especially if competitors develop structurally related compounds.

4. How does this patent fit within the current patent landscape?
It exists within a dense IP environment with overlapping patents on similar chemical classes and therapeutic methods, necessitating strategic landscape management.

5. What strategies can patent holders adopt to extend protection?
Filing follow-up patents on derivatives, delivery methods, combination therapies, or new therapeutic indications can extend market exclusivity and hinder generic competition.


References

[1] USPTO Patent Database, U.S. Patent 8,722,702.
[2] Prior art references and citations from the patent file.
[3] Relevant litigation cases or patent office proceedings, if applicable.

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Drugs Protected by US Patent 8,722,702

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Daiichi Sankyo Inc TURALIO pexidartinib hydrochloride CAPSULE;ORAL 211810-002 Oct 14, 2022 RX Yes No 8,722,702 ⤷  Get Started Free Y ⤷  Get Started Free
Daiichi Sankyo Inc TURALIO pexidartinib hydrochloride CAPSULE;ORAL 211810-001 Aug 2, 2019 DISCN Yes No 8,722,702 ⤷  Get Started Free Y ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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