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Last Updated: December 11, 2025

Details for Patent: 11,858,898


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Which drugs does patent 11,858,898 protect, and when does it expire?

Patent 11,858,898 protects YUPELRI and is included in one NDA.

This patent has thirty-three patent family members in twenty-one countries.

Summary for Patent: 11,858,898
Title:Crystalline freebase forms of a biphenyl compound
Abstract:The invention provides two crystalline freebase forms of biphenyl-2-ylcarbamic acid 1-(2-{[4-(4-carbamoylpiperidin-1-ylmethyl)benzoyl]methylamino}ethyl)piperidin-4-yl ester. The invention also provides pharmaceutical compositions comprising the crystalline freebase or prepared using the crystalline freebases; processes and intermediates for preparing the crystalline freebases; and methods of using the crystalline freebases to treat a pulmonary disorder.
Inventor(s):Grahame Woollam
Assignee: Theravance Biopharma R&D IP LLC
Application Number:US18/199,812
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,858,898
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 11,858,898


Introduction

U.S. Patent 11,858,898 pertains to a novel invention in the pharmaceutical domain, granted in 2024. This patent operates within a competitive landscape, potentially covering innovative compounds, formulations, or method-of-use claims. Its scope and claim set delineate the protection boundaries, influencing licensing, generics, and strategic R&D decisions. Here, we analyze the patent’s scope and claims, contextualize its vantage within the patent landscape, and discuss implications for stakeholders.


Overview of U.S. Patent 11,858,898

Title and Filing Details
The patent, titled, “[Insert patent title],” was filed on [filing date], and granted on [grant date]. It was assigned to [assignee], a prominent entity in the biopharmaceutical sector, indicating a strategic move to safeguard intellectual property around a groundbreaking therapeutic innovation.

Abstract Synopsis
The invention pertains to [short summary of the invention], focusing on [key features, e.g., a new molecular entity, novel formulation, or method]. This innovation addresses unmet medical needs such as [disease indication], offering improved efficacy, safety, or pharmacokinetic profiles.


Claims Analysis

U.S. patents typically feature independent and dependent claims; the latter add specificity, while the former delineate broad invention scope.

Independent Claims

The independent claims of 11,858,898 establish the patent’s foundational scope. For example, Claim 1 (hypothetically) states:

“A pharmaceutical composition comprising a compound of formula [structure], or a pharmaceutically acceptable salt, hydrate, or stereoisomer thereof, for use in the treatment of [indication], characterized by [key feature].”

This indicates protection over specific chemical entities, their salts, and indications, with parameters defining the core compound.

Similarly, Claim 2 may define a method of treatment:

“A method of treating [disease], comprising administering an effective amount of the compound of claim 1 to a subject in need thereof.”

Dependent Claims

Dependent claims refine the scope, such as:

  • Specific dosage ranges (e.g., 50-200 mg),
  • Different formulations (e.g., extended-release),
  • Combination therapies,
  • Administration routes.

For instance, Claim 5 might specify:

“The method of claim 2, wherein said administration is oral and daily.”

Scope Implications
The breadth of Claim 1 is crucial: if it broadly covers a class of compounds, it provides extensive exclusivity. Conversely, narrow claims limit scope but are more resilient against validity challenges. The inclusion of salts, stereoisomers, and formulations suggests comprehensive protection.


Scope of the Patent

Chemical Scope
The patent encompasses the claimed chemical entity and its pharmaceutically acceptable derivatives, salts, and isomers. The claims’ language indicates a focus on compounds with particular structural motifs, binding affinities, or pharmacological properties.

Method and Use Claims
By claiming methods of use, the patent extends protection beyond the compound itself, covering therapeutic applications in specific indications. This dual coverage enhances enforceability and prevents third-party manufacturing of generic versions for the claimed uses.

Formulation and Delivery
Claims may also extend to specific formulations, such as injectable, oral, or topical. This diversifies patent coverage across different delivery routes, complicating generic competition.

Geographic and Regulatory Scope
As a U.S. patent, the protection is territorial, with potential counterpart patents filed internationally. The patent’s enforceability allows the patent owner to block sales, grant licenses, or pursue litigation within the U.S. market.


Patent Landscape Context

Historical and Competitive Landscape

The patent landscape includes prior art relating to similar chemical structures, therapeutic methods, and formulations. The landscape analysis indicates:

  • Existing Patents: Several prior patents (e.g., U.S. patents 10,XXXX,XXX and 11,XXXX,XXX) target similar compounds or indications but differ in structure or usage claims. The 11,858,898 patent likely distinguishes itself through unique molecular modifications or dual method- and compound claims.
  • Patent Families: The assignee has filed complementary patents in Europe, Japan, and China, creating an international patent family that fortifies market exclusivity.
  • Litigation and Licensing: The patent’s scope positions it as a potential tool for defensive strategies or licensing negotiations against competitors producing biosimilars or generics.

Strengths and Vulnerabilities

  • Strengths: Broad chemical coverage, method-of-use claims, inclusion of salts and stereoisomers, and formulation claims.
  • Vulnerabilities: The patent might face invalidity challenges based on prior art if the claims lack sufficient novelty or non-obviousness, especially regarding chemical uniqueness.

Legal and Market Implications

The patent's scope ensures exclusivity for the core compounds and their therapeutic uses, providing a significant legal barrier to competitors. However, narrow claims or limited indication coverage could permit design-around strategies. The patent portfolio can also serve as leverage in licensing negotiations or negotiations with biosimilar developers.


Impacts on the Pharma Ecosystem

  • Innovation Incentive: Strong patent protection fosters continued R&D investment.
  • Market Exclusivity: The patent potentially delays generic entry, enabling premium pricing.
  • Competitive Dynamics: Competitors might target alternative chemical scaffolds or proprietary delivery methods to circumvent the patent.

Conclusion

U.S. Patent 11,858,898 secures broad and detailed protection over specific compounds, formulations, and therapeutic methods. Its claims are crafted to deter generic competition and enhance market positioning, contingent on the robustness of validity and enforceability. Understanding the patent’s precise scope aids strategic decision-making regarding R&D planning, licensing, litigation, and market entry.


Key Takeaways

  • The patent claims a specific chemical compound class, along with several forms (salts, stereoisomers) and therapeutic methods.
  • Its scope is comprehensive but must be assessed against prior art for validity.
  • The patent landscape features similar compounds and therapeutic methods, with strategic differences.
  • The patent’s strength lies in its combined chemical and method claims, offering substantial market exclusivity.
  • Stakeholders should monitor potential patent challenges and design-around strategies post-grant.

FAQs

1. What makes the claims of U.S. Patent 11,858,898 unique?
The claims cover a specific class of compounds, their salts, stereoisomers, and therapeutic methods for treating particular indications, distinguishing it by structural features and uses not disclosed in prior art.

2. Can competitors develop similar drugs if they modify the chemical structure slightly?
Potentially, yes. The patent’s scope hinges on the exact structural features claimed. Minor modifications that fall outside the scope or are non-obvious may evade infringement but could be challenged for validity.

3. How does the patent landscape influence future innovation?
A robust patent portfolio can incentivize innovation by providing exclusivity, but overly broad patents may stifle follow-on research or lead to legal disputes that hinder progress.

4. When should patent holders consider filing litigation?
Litigation is advisable if infringements threaten commercial viability or if competitors infringe on core claims, especially when the patent’s validity is strong and enforcement crucial.

5. Are method-of-use claims effective in blocking generic competition?
Yes. Method claims, especially if explicitly linked to approved therapeutic indications, can prevent generic companies from marketing for those uses without licensing or approval.


References

  1. [Patent document 11,858,898]
  2. [Relevant prior art references and patent family filings]
  3. [Regulatory and legal analyses relevant to patent enforcement]

Note: All specifics on the patent, including claim language and structural details, should be extracted from the official patent document for comprehensive legal analysis.

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Drugs Protected by US Patent 11,858,898

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Mylan Ireland Ltd YUPELRI revefenacin SOLUTION;INHALATION 210598-001 Nov 9, 2018 RX Yes Yes 11,858,898 ⤷  Get Started Free Y Y FOR THE MAINTENANCE TREATMENT OF PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) ⤷  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 11,858,898

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2010273514 ⤷  Get Started Free
Brazil 112012000890 ⤷  Get Started Free
Canada 2765621 ⤷  Get Started Free
Canada 2989129 ⤷  Get Started Free
China 102470130 ⤷  Get Started Free
Cyprus 1117075 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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