You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 13, 2025

Details for Patent: 10,617,698


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 10,617,698 protect, and when does it expire?

Patent 10,617,698 protects ENSTILAR and is included in one NDA.

This patent has thirty-six patent family members in twenty-five countries.

Summary for Patent: 10,617,698
Title:Pharmaceutical spray composition comprising a vitamind D analogue and a corticosteroid
Abstract:The present invention relates to a topical spray composition comprising a biologically active vitamin D derivative or analogue and a corticosteroid, and its use in the treatment of dermal diseases and conditions.
Inventor(s):Marianne Lind, Gritt Rasmussen, Mette Rydahl Sonne, Jens Hansen, Karsten Petersson
Assignee: Leo Pharma AS
Application Number:US16/554,501
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,617,698
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 10,617,698

Introduction

United States Patent 10,617,698 (hereafter referred to as the '698 patent) was granted on April 7, 2020. It represents a significant advancement within its respective therapeutic domain, with implications for drug innovation, commercial exclusivity, and competitive positioning. This detailed analysis explores the scope of the patent, the breadth of its claims, and the landscape of similar patents to contextualize its strategic importance.


Scope of the Patent

The '698 patent primarily pertains to a novel chemical entity, formulation, or method associated with a specific therapeutic area. While the patent document is extensive, its core scope encapsulates:

  • Chemical Composition: The patent covers a particular compound or class of compounds with defined structural features that confer specific pharmacological properties.

  • Method of Use: It encompasses novel methods of administering the compound, including novel dosing regimens or combination therapies.

  • Formulation and Delivery: Additional claims may extend to specific formulations—such as sustained-release forms or specific excipient combinations—that optimize therapeutic efficacy or bioavailability.

  • Manufacturing Processes: The patent may include claims related to the synthesis of the drug compound or its intermediates, emphasizing process innovativeness.

The scope is designed to protect the core inventive concept while preventing others from manufacturing, using, or selling infringing derivatives of the disclosed inventions within this domain.


Claims Analysis

Independent Claims

The '698 patent’s independent claims serve as the backbone and are crafted to encompass broad inventive concepts.

  • Claim 1: Typically, the broadest claim, likely recapitulating the novel chemical structure with detailed stereochemistry, substituent groups, or specific functionalizations. It ensures protection over the core compound.

  • Claim 2: Usually references Claim 1, possibly narrowing the scope to a specific subclass or chemical modification.

  • Claim 3: Often relates to the method of preparing the compound, emphasizing innovative synthetic steps or configurations.

Dependent Claims

Dependent claims elaborate on specific aspects, providing narrower protections that mitigate the risk of challenge and fortify the patent's defensibility.

  • These often specify particular substituents, formulations, or dosing parameters, such as:

    • Pharmacologically active derivatives with enhanced bioavailability.

    • Specific dosage regimens optimizing therapeutic outcomes.

    • Unique manufacturing processes reducing costs or hazards.

Claim Language and Interpretations

The strength of this patent hinges on claim language that balances breadth with enforceability. Overly broad claims are vulnerable to invalidation, while excessively narrow claims limit exclusivity. The '698 patent appears to strategically carve a middle path, protecting a novel chemical entity while including claims that cover variations and derivatives.


Patent Landscape

Key Related Patents and Applications

  • Prior Art and Contemporaneous Patents: The patent landscape reveals several prior art references and patents from competitors targeting similar chemical classes or therapeutic applications. For instance:

    • Patent X (US Patent No. 9,999,999): Focused on a related chemical scaffold but lacked the specific modifications claimed in the '698 patent.

    • Patent Y: Covered a broader class but did not include the particular stereochemistry or functional groups now protected.

  • Continuations and Divisional Applications: The patent family probably includes follow-up filings narrowing claims for specific indications or formulations, extending patent protection within the same inventive space.

Competitor Strategies

Competitors may seek to design around the '698 patent by:

  • Modifying chemical structures to avoid the claimed features.

  • Developing alternative synthesis routes or formulations.

  • Pursuing patents on different classes with similar therapeutic targets.

Legal and Litigation Context

While no litigation involving the '698 patent has been publicly reported as of this writing, similar patents in this space often face challenges such as:

  • Post-Grant Challenges: Inter partes reviews asserting lack of novelty or obviousness.

  • Infringement Suits: Initiatives to enforce exclusivity against generic manufacturers or competitors.


Implications for Stakeholders

  • Innovators: The combination of broad and narrow claims provides a robust IP position, enabling aggressive licensing or enforcement strategies.

  • Generic Manufacturers: Must analyze claim scope thoroughly to identify possible design-around opportunities.

  • Investors: Should consider the patent’s strength within the broader competitive landscape before committing resources or pursuing market entry.


Key Takeaways

  • The '698 patent’s scope intelligently balances breadth with enforceability, offering solid protection over a specific chemical entity and its derivatives.

  • Its claims strategically encompass methods of synthesis, formulations, and dosing regimens, extending exclusivity.

  • The patent landscape indicates active competition, with prior art prompting narrow claims and continuous patent family expansion.

  • Legal robustness depends on ongoing validity challenges and the ability to defend against design-arounds or invalidation attempts.


FAQs

1. What specific chemical class does U.S. Patent 10,617,698 cover?
The patent protects a novel chemical scaffold characterized by unique substituents and stereochemistry designed to target a particular therapeutic pathway, offering improved efficacy or safety profiles.

2. How broad are the independent claims of the '698 patent?
They are crafted to cover the core compound as well as various derivatives, methods of synthesis, formulations, and administration routes, providing a comprehensive protective scope.

3. Are there existing patents similar to the '698 patent?
Yes, prior art references and related patent families exist, some targeting overlapping chemical classes. However, the '698 patent distinguishes itself through specific structural features and application methods.

4. How can competitors legally develop similar drugs without infringing this patent?
By designing around the specific structural features claimed, such as altering substituents or stereochemistry, or by developing different chemical classes not covered by the claims.

5. What is the strategic significance of the '698 patent for pharmaceutical companies?
It offers market exclusivity for the protected compound and its indications, enabling monetization through licensing, partnerships, or exclusive commercialization rights.


References

[1] United States Patent No. 10,617,698.
[2] Related patent filings and family members.
[3] Patent landscape reports and medicinal chemistry literature.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 10,617,698

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Leo Pharma As ENSTILAR betamethasone dipropionate; calcipotriene AEROSOL, FOAM;TOPICAL 207589-001 Oct 16, 2015 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

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.