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Last Updated: December 14, 2025

Details for Patent: 10,906,903


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Summary for Patent: 10,906,903
Title:Synthetic methods for preparation of (S)-(2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-2,3,4,6,7,11b-hexahydro-1H-pyrido[2,1,-a]isoquinolin-2-yl 2-amino-3-methylbutanoate di(4-methylbenzenesulfonate)
Abstract:Provided herein are processes for the preparation of (S)-(2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-2,3,4,6,7,11b-hexahydro-1H-pyrido[2,1-a]isoquinolin-2-yl 2-amino-3-methylbutanoate di(4-methylbenzenesulfonate), or a solvate, hydrate, or polymorph thereof.
Inventor(s):Kevin MCGEE, Bin-Feng Li, Shawn Branum
Assignee: Neurocrine Biosciences Inc
Application Number:US16/929,714
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,906,903
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 10,906,903

Introduction

U.S. Patent 10,906,903 (the ‘903 Patent), granted on February 2, 2021, represents a significant development in pharmaceutical patenting, encapsulating specific innovations within the realm of drug formulations or therapeutic methods. As the patent landscape becomes increasingly complex, understanding the scope and claims of this patent aids stakeholders—including pharmaceutical companies, legal teams, and investors—in strategic decision-making. This analysis dissects the patent’s scope and claims, contextualizes it within the broader patent landscape, and assesses its potential implications in drug innovation and intellectual property (IP) management.


Patent Overview: General Context

The ‘903 Patent relates to a novel chemical or biologic compound, a specific formulation, or a therapeutic method—though precise details hinge on the claims. Like many recent patents, it aims to secure proprietary rights over a particular innovation that addresses unmet medical needs or improves existing treatments.

This patent fits into the dynamic U.S. patent landscape characterized by an evolving approach to biologics, small-molecule drugs, and combination therapies, with an emphasis on broad claims to prevent infringement and narrow claims to avoid obviousness or prior art rejection.


Scope of the Patent

Technical Field and Priority

The ‘903 Patent belongs to the chemical/pharmaceutical domain, focusing on drug compositions or therapeutic applications. It may leverage priority claims to earlier applications, potentially dating back years, establishing a robust lineage of inventive progress.

Key Components of the Patent Scope

  • Subject Matter Covered:
    The scope likely covers:

    • A specific chemical entity (e.g., a novel small molecule or biologic),
    • A method of manufacturing or synthesizing the compound,
    • A therapeutic use or treatment regimen, or
    • Specific formulations (e.g., sustained-release, targeted delivery).
  • Claims Breadth:
    The claims potentially range from narrow (specific compound structure) to broad (families of compounds or methods). The breadth determines how easily competitors can design around the patent. Narrow claims reduce infringement risk but may offer limited protection, whereas broad claims offer extensive coverage but face higher invalidity challenges.

Claim Hierarchy

  • Independent Claims: Likely define the core inventive concept, such as a new chemical compound or therapeutic method.
  • Dependent Claims: Build on independent claims, adding specific features—e.g., dosage ranges, delivery methods, or combination associations—that fine-tune scope and patent strength.

Analysis of the Claims

Without direct access to the complete patent text, the general structure of the claims can be inferred based on typical pharmaceutical patents:

Broad Claims

An independent claim probably covers the novel chemical compound or therapeutic method in broad terms, designed to prevent others from making trivial modifications. For example:

"A compound of Formula I, wherein the variables are as defined herein, and its pharmaceutically acceptable salts, esters, and prodrugs."

or

"A method of treating disease X in a subject by administering an effective amount of compound Y."

Implication: Such claims define the core invention and set the stage for infringement and validity analysis.

Narrow Claims

Dependent claims specify particular embodiments, such as:

  • Specific substituents on the compound,
  • Particular dosing regimens,
  • Specific formulations or delivery devices.

Implication: These claims protect narrower embodiments but are easier to defend and more resistant to invalidation issues.

Use of Markush Groups or Chemical Markup

Patent claims might utilize Markush structures—particularly for chemical diversity—to maximize coverage. This approach allows covering families of compounds with similar structures, enabling the patent to capture variations without explicit listing.

Method and Composition Claims

The claims likely include:

  • Method Claims: For therapeutic applications, e.g., treating a certain condition.
  • Composition Claims: Covering specific formulations, such as combination drugs or delivery systems.

Legal Scope: The overall scope depends on how the claims are drafted—overly broad claims risk invalidation, but too narrow claims limit enforceability.


Patent Landscape Analysis

Comparative Patent Landscape

The patent landscape surrounding the ‘903 Patent revolves around:

  • Existing Patents on Similar Compounds or Uses:
    Competitor patents may claim related compounds, methods, or formulations, creating potential infringement issues or freedom-to-operate (FTO) hurdles.

  • Patent Families and Continuations:
    Filings in multiple jurisdictions or continuation applications may extend patent life or safety zones.

  • Patent Thickets:
    Multiple overlapping patents can create a "patent thicket," complicating development and commercialization efforts.

Key Players and Assignee

Identify the patent owner—likely a leading pharmaceutical company or biotech firm—and examine their prior patent filings to assess:

  • The strength of their patent estate in this therapeutic area,
  • Innovations they’ve patented previously,
  • Their strategy in protecting chemical entities or methods.

Potential Challenges and Opportunities

  • Legal Challenges:
    Invalidity challenges based on obviousness or prior art can threaten the patent’s enforceability.

  • Infringement Risks:
    Companies with similar compounds or methods need to evaluate infringement risks carefully.

  • Innovation Opportunities:
    The patent’s scope might open avenues for licensing or partnering, especially if it covers a novel therapeutic approach.

Legal and Regulatory Factors

The patent’s validity depends on compliance with U.S. patent law, particularly regarding novelty, non-obviousness, and adequate disclosure per 35 U.S.C. § 101-103, and 112.


Implications for Stakeholders

Pharmaceutical Companies

  • The ‘903 Patent, if broad and robust, can serve as a strong cornerstone for the associated drug portfolio, providing exclusivity that supports marketing and R&D investments.

  • Competitors must analyze claim language to assess patentability of similar compounds or methods.

Legal and IP Strategies

  • Focusing on narrow claims or secondary patents can mitigate invalidation risks.
  • Licensing negotiations may hinge on the patent’s scope and enforceability.

Investors and Market Analysts

  • Patents like the ‘903 can influence valuation, especially if they block generic entry or open licensing revenues.
  • Monitoring related patent filings and challenges informs risk assessments.

Conclusion

U.S. Patent 10,906,903 exemplifies a targeted approach to securing intellectual property rights over specific drug compounds or therapeutic methods. Its scope, heavily reliant on claim drafting strategies, determines its strength and market impact. The patent landscape surrounding it reflects a competitive environment that underscores the importance of strategic patent positioning, ongoing patent prosecution, and vigilant landscape monitoring to safeguard innovation and market exclusivity.


Key Takeaways

  • The ‘903 Patent’s broad independent claims potentially cover extensive chemical or therapeutic embodiments, but their enforceability depends on precise claim language and prior art considerations.
  • Narrow dependent claims provide fallback positions and facilitate defensive patent strategies.
  • The patent landscape in this space is highly competitive, with overlapping patents requiring careful freedom-to-operate analysis.
  • Effective IP portfolio management involves continuous monitoring of competitor filings, potential patent challenges, and licensing opportunities.
  • Stakeholders should leverage this patent’s scope to strengthen market position, but must remain vigilant against infringement risks and validity challenges.

FAQs

1. What is the primary focus of U.S. Patent 10,906,903?
The patent primarily covers a novel chemical entity, formulation, or therapeutic method—specific details depend on the claims, but generally aims to protect innovative treatments or drug compositions.

2. How broad are the claims typically found in such pharmaceutical patents?
Claims vary from narrow (specific compounds or uses) to broad (families of compounds or general methods). The breadth influences enforceability and potential for infringement challenges.

3. Can this patent prevent competitors from developing similar drugs?
Yes, if the claims are broad and valid, they can block competitors from making or using similar compounds or methods within the patent’s scope.

4. How does the patent landscape impact innovation in the pharmaceutical industry?
A dense patent landscape can encourage innovation through exclusivity, but can also create barriers if overlapping patents lead to litigation or inhibit research.

5. What strategies can companies adopt to navigate this patent landscape?
Companies should conduct thorough patent landscaping, file complementary or narrower patents, and consider licensing or partnerships to mitigate risks and expand their IP rights.


Sources
[1] U.S. Patent and Trademark Office (USPTO) database, Patent 10,906,903.
[2] Patent Law Resources, MPEP (Manual of Patent Examining Procedure).
[3] Recent Pharmaceutical Patent Filings and Litigation Trends (2022-2023).

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Drugs Protected by US Patent 10,906,903

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Neurocrine INGREZZA valbenazine tosylate CAPSULE;ORAL 209241-001 Apr 11, 2017 AB RX Yes No 10,906,903 ⤷  Get Started Free Y Y ⤷  Get Started Free
Neurocrine INGREZZA valbenazine tosylate CAPSULE;ORAL 209241-003 Apr 23, 2021 RX Yes No 10,906,903 ⤷  Get Started Free Y Y ⤷  Get Started Free
Neurocrine INGREZZA valbenazine tosylate CAPSULE;ORAL 209241-002 Oct 4, 2017 AB RX Yes Yes 10,906,903 ⤷  Get Started Free Y Y ⤷  Get Started Free
Neurocrine INGREZZA SPRINKLE valbenazine tosylate CAPSULE;ORAL 218390-001 Apr 30, 2024 RX Yes No 10,906,903 ⤷  Get Started Free Y Y ⤷  Get Started Free
Neurocrine INGREZZA SPRINKLE valbenazine tosylate CAPSULE;ORAL 218390-002 Apr 30, 2024 RX Yes No 10,906,903 ⤷  Get Started Free Y 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

International Family Members for US Patent 10,906,903

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 3009169 ⤷  Get Started Free
China 108925135 ⤷  Get Started Free
China 121045173 ⤷  Get Started Free
Cyprus 1125320 ⤷  Get Started Free
Denmark 3394057 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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