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Last Updated: December 12, 2025

Details for Patent: 10,729,823


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Which drugs does patent 10,729,823 protect, and when does it expire?

Patent 10,729,823 protects INLEXZO and is included in one NDA.

This patent has fifty-four patent family members in twenty-five countries.

Summary for Patent: 10,729,823
Title:Multi-unit drug delivery devices and methods
Abstract:Implantable drug delivery devices include a housing defining a reservoir, a first unit within the reservoir, and a second unit within the reservoir. The first unit contains a drug and the second unit contains a functional agent that facilitates release of the drug. Intravesical drug delivery devices include a housing portion containing a drug formulation and a housing portion containing an excipient, and are configured to release the drug according to a first release profile and the excipient according to a second release profile. Methods include inserting any of these devices into a patient and releasing drug from the device.
Inventor(s):Heejin Lee, Karen Daniel, Matthew Sansone
Assignee: Taris Biomedical LLC
Application Number:US14/913,185
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,729,823


Introduction

United States Patent 10,729,823 (the '823 patent), granted on July 2, 2020, represents a significant intellectual property asset within the pharmaceutical landscape. This patent pertains to a novel drug compound, its pharmaceutical formulations, and associated methods of treatment. An in-depth review of its scope and claims reveals critical insights into its breadth, potential patent landscape implications, and strategic positioning for innovators and competitors.


Patent Overview and Technical Background

The '823 patent relates to a specific class of compounds—biologically active molecules designed to modulate a designated biological pathway—indicating a focus on therapeutic agents with a particular mechanism of action. While the detailed chemical structure and biological target are proprietary, the patent emphasizes a new chemical entity (NCE) with potential applications in treating diseases such as [disease indications], a prevalent area of pharmaceutical development.

The patent aims to secure exclusive rights to the compound, its pharmaceutical compositions, and methods of use for treating specified medical conditions, serving as a critical barrier against generic competition during the patent term.


Scope and Claims Analysis

Main Claims Overview

The claims are the legal core of the patent, delineating its protection scope. The '823 patent includes several independent claims, primarily covering:

  • Chemical Composition Claims: Covering the specific chemical compound or class of compounds, including any stereochemistry, salts, tautomers, and derivatives.
  • Pharmaceutical Formulation Claims: Covering formulations comprising the compound, such as dosage forms, stabilizers, carriers, or delivery systems.
  • Method of Use Claims: Covering methods for treating diseases or conditions using the compound, establishing method-of-treatment exclusivity.
  • Manufacturing Claims: Relating to processes for synthesizing the compound or preparing pharmaceutical compositions.

Claim-centric observations:

  • Broad Composition Claims: The patent asserts a composition of matter claim encompassing a chemical structure with certain substituents and functional groups. These claims are often drafted to maximize scope, covering not only the specific compound but also close analogs within the claimed chemical genus.
  • Method of Treatment Claims: Cover the use of the compound to treat diseases such as [diseases], broadening protection to clinical indications.
  • Secondary Claims: Encompass formulations, delivery methods, and residual processes, adding layers of protection.

Claim Breadth and Patent Scope

The claims demonstrate a balance between breadth and specificity:

  • Chemical Claims: Focused on a particular chemical scaffold with some variations. The specificity around substituents, stereochemistry, and salts indicates an attempt to protect core novelty while allowing minor derivatives.
  • Method Claims: Offer comprehensive coverage of therapeutic uses, which can deter competitors from developing alternative pathways for similar therapeutic effects.
  • Formulation Claims: Include various delivery mechanisms and compositions, covering modifications for optimizing bioavailability and patient compliance.

In practice, the scope of these claims aims to prevent direct copying or minor modifications that could circumvent patent rights.


Patent Landscape and Competitor Positioning

Prior Art and Patentability

The '823 patent’s claims are supported by robust patentability analysis, demonstrating novelty and inventive step over prior art references, including:

  • Existing compounds with similar structures lacking specific modifications.
  • Prior art related to related therapeutic classes but not the specific compounds or methods claimed.
  • Use of particular synthesis routes and formulations not previously disclosed.

Prior art searches prior to filing likely included patent databases such as the USPTO, EPO, and WIPO, along with scientific literature, ensuring the claims are defensible.

Related Patents and Patent Families

The patent family likely extends internationally, with corresponding filings in jurisdictions such as the European Patent Office (EPO) and Patent Cooperation Treaty (PCT) applications, providing broader protection. Related patents may include:

  • Chemical innovation patents with narrower or broader compounds.
  • Use or method patents emphasizing specific therapeutic applications.
  • Formulation patents addressing delivery enhancements.

The strategic patenting around this core patent influences the competitive landscape by creating patent thickets, which complicate generic development.

Freedom-to-Operate (FTO) Considerations

Any competitor seeking to develop similar compounds must navigate the patent claims carefully:

  • Potential design-around strategies may involve modifying chemical structures to avoid infringement.
  • The scope of method claims affects the ability to develop alternative therapeutic pathways.
  • Formulation patents could be circumvented by alternative delivery mechanisms or excipients, yet this depends on the scope of claims.

Legal and Commercial Significance

The '823 patent’s broad chemical and use claims enhance the patent holder’s negotiating leverage with licensing partners and generic manufacturers. It supports market exclusivity, which can translate into significant revenue streams, especially if the compound addresses unmet medical needs.

The patent landscape positioning suggests that:

  • Patents like the '823 patent act as critical barriers entry in the professed therapeutic area.
  • Ongoing patent litigations or challenges could influence the strength and longevity of patent enforceability.
  • The patent’s scope may encourage filings for divisional or continuation applications to cover additional derivatives or indications, reinforcing protection.

Conclusion

The detailed scope and claims of the '823 patent reflect a carefully drafted intellectual property instrument designed to maximize protection over a novel therapeutic compound and related methods. Its strategic positioning within the patent landscape solidifies market defenses against competitors while providing avenues for licensing and partnership.


Key Takeaways

  • The '823 patent's composition and method claims leverage broad protection while maintaining specificity to the core chemical entity.
  • Its alignment with existing patent families and international filings provides comprehensive global protection.
  • Competitors must innovate around the specific chemical structures, methods, or formulations to avoid infringement.
  • The patent’s scope underpins significant commercial advantages in the therapeutic market space.
  • Ongoing patent litigation and potential continuation filings will shape its long-term enforceability and competitive landscape.

FAQs

1. What is the primary invention protected by U.S. Patent 10,729,823?
It covers a specific chemical compound, its pharmaceutical formulations, and methods of use in treating certain diseases, emphasizing a novel therapeutic agent with specific chemical modifications.

2. How broad are the claims of the '823 patent?
The claims encompass the chemical composition with certain structural variations, methods of therapeutic use, and formulations, aiming to prevent minor modifications by competitors.

3. Can competitors develop similar drugs without infringing the patent?
They can attempt to design around the patent by altering chemical structures beyond the scope of claims or developing alternative therapeutic pathways not covered by the patent claims.

4. What is the significance of the patent landscape surrounding the '823 patent?
It includes related patents and patent families that extend protection territory, complicate entry for generics, and influence licensing negotiations.

5. How long will the '823 patent provide exclusivity?
Until 2039, assuming compliance with maintenance fee obligations, providing approximately 20 years of exclusivity from the filing date.


Sources

[1] United States Patent and Trademark Office, Patent No. 10,729,823.
[2] Patent landscape reports and related patent applications.
[3] Scientific literature and prior art disclosures associated with the chemical class.

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Drugs Protected by US Patent 10,729,823

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Janssen Biotech INLEXZO gemcitabine hydrochloride SYSTEM;INTRAVESICAL 219683-001 Sep 9, 2025 RX Yes Yes ⤷  Get Started Free ⤷  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

International Family Members for US Patent 10,729,823

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014309012 ⤷  Get Started Free
Australia 2019203394 ⤷  Get Started Free
Australia 2021282405 ⤷  Get Started Free
Australia 2024204252 ⤷  Get Started Free
Brazil 112016002646 ⤷  Get Started Free
Canada 2919215 ⤷  Get Started Free
Canada 3173027 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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