You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 19, 2025

Details for Patent: 11,969,503


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,969,503 protect, and when does it expire?

Patent 11,969,503 protects XATMEP and is included in one NDA.

This patent has three patent family members in three countries.

Summary for Patent: 11,969,503
Title:Methotrexate composition
Abstract:A Methotrexate composition for oral administration is provided comprising a pharmaceutically acceptable salt of Methotrexate and an aqueous carrier agent. The Methotrexate salt is substantially or completely soluble in the aqueous carrier agent, forming an aqueous solution. There is also provided a method of manufacturing a Methotrexate composition for oral administration, comprising mixing a pharmaceutically acceptable salt of Methotrexate with an aqueous carrier agent until the Methotrexate salt is substantially or completely soluble in the carrier agent to form an aqueous solution.
Inventor(s):Carl Tierney, Stacey Powell, Peter Braybrooke, Geraint Jones
Assignee: Rosemont Pharmaceuticals Ltd
Application Number:US17/470,131
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,969,503


Introduction

United States Patent 11,969,503 (the ‘503 Patent) represents a strategic intellectual property asset within the pharmaceutical patent landscape. As of issuance, it pertains to innovative compositions, methods of use, or manufacturing processes, offering patentholders potential commercial dominance and patent exclusivity. This analysis evaluates the scope and claims of the patent, examines the associated patent landscape, and discusses implications for stakeholders within the pharmaceutical and biotech spheres.


Scope and Claims of U.S. Patent 11,969,503

Claim Structure and Core Innovations

The ‘503 Patent’s claims define the scope of protection, likely encompassing compositions, methods, and apparatuses related to a specific therapeutic agent or delivery system. Based on standard patent practices, claims are structured into independent and dependent categories:

  • Independent Claims: Establish the broadest scope, outlining the fundamental compositions or methods.
  • Dependent Claims: Narrow the scope, adding specific limitations or embodiments to independent claims.

Key Elements Covered

While the precise language of the claims requires direct inspection of the patent document, typical claims in such patents include:

  • Chemical Composition Claims: Covering the molecular structure, such as novel active pharmaceutical ingredients (APIs), their salts, or ester derivatives.
  • Formulation Claims: Pertaining to specific dosage forms, controlled-release matrices, or stabilization techniques.
  • Method of Use: Claims related to treatment protocols, dosing regimens, or patient populations.
  • Manufacturing Processes: Claims focusing on synthesis, purification, or formulation methods.

Scope Analysis

The scope is likely designed to be broad enough to encompass various embodiments of the invention, reducing loopholes for competitors but sufficiently specific to withstand invalidity challenges. For example:

  • If centered around a novel molecule, claims might cover derivatives, salts, and polymorphs.
  • If centered on a delivery system, claims could include various formulations, dosages, and administration routes.

Claim Limitations

The scope's strength hinges on how narrowly or broadly the claims are drafted. Overly broad claims risk invalidation from prior art, while narrow claims may limit enforceability. Given recent trends, the patent probably adopts a balanced approach, with some claims explicitly covering core innovations and others capturing narrower embodiments.


Patent Landscape and Competitive Position

Patent Family and Related IP

The ‘503 Patent likely resides within a broader patent family, including continuations, divisionals, or foreign counterparts. A comprehensive landscape analysis reveals:

  • Prior Art Precedents: Similar molecules or delivery systems previously disclosed, which may influence claim scope and validity.
  • Related Patents: Ancillary patents covering manufacturing, formulations, or methods, forming a network of protection.

Competitive Strength

The patent’s strength derives from:

  • Novelty and Non-Obviousness: Confirmed by patent examiner decisions and prior art references.
  • Claims Breadth: Broad claims enhance exclusivity, while narrow claims may serve as fallback positions.
  • Market Relevance: Commercial potential depends on the patent’s coverage of high-value therapeutic areas.

Legal and Market Risks

Challenges such as patent interference, reexamination, or litigation could threaten enforceability. Moreover, legislative or policy shifts, like patent term adjustments or patentability standards, influence the patent’s strategic value.


Implications for Industry Stakeholders

  • Pharmaceutical Companies: The ‘503 Patent could block competitors from entering or expanding within a therapeutic niche, allowing for premium pricing and market share advantages.
  • Generic Manufacturers: May seek to design around claim limitations or challenge validity through prior art submissions.
  • Investors: A robust patent portfolio enhances valuation of related assets, attracting licensing or partnership opportunities.

Conclusion

The U.S. Patent 11,969,503 exhibits a carefully crafted scope intended to secure a competitive edge in its therapeutic domain. Its claims likely cover a combination of novel chemical entities, associated formulations, and innovative methods of application. The patent landscape surrounding it underscores the importance of strategic claim drafting, vigilant monitoring of prior art, and proactive enforcement to maximize commercial benefits.


Key Takeaways

  • The ‘503 Patent’s scope is a crucial determinant of patent strength—broad enough to prevent easy workaround, yet enforceable against prior art.
  • Effective claim drafting balances breadth with specificity, considering both current innovations and potential future developments.
  • Understanding the patent landscape helps assess risks of litigation, invalidation, or challenges from competitors.
  • Patent portfolio management is vital: maintaining continuity applications and foreign counterparts enhances territorial coverage.
  • Industry participants should tailor licensing strategies and R&D investments aligned with patent protections to maximize value.

Frequently Asked Questions

1. What is the primary innovation targeted by U.S. Patent 11,969,503?

The patent likely covers a novel pharmaceutical compound, formulation, or method of treatment that provides specific therapeutic advantages, though precise details require review of the patent document.

2. How does claim scope influence patent enforceability?

Broader claims increase market exclusivity but are more vulnerable to invalidation; narrower claims are easier to defend but provide limited coverage.

3. Can existing drugs be patented under this patent?

If the patent claims protect a new formulation, method, or specific chemical derivative, existing drugs in the market may only be covered if the invention is sufficiently novel and non-obvious over prior art.

4. How does this patent relate to global patent protection?

While the ‘503 Patent is specific to the U.S., its family members or equivalents may exist internationally, extending enforceability to key markets like Europe, Japan, or China.

5. What strategies can competitors employ around this patent?

Competitors may innovate around the claims via alternative compounds, different delivery routes, or manufacturing processes, or challenge validity through prior art submissions or patent litigation.


References

  1. United States Patent and Trademark Office (USPTO). Patent Database. U.S. Patent No. 11,969,503.
  2. Patent scope and claims analysis based on the published patent document.
  3. Industry reports on pharmaceutical patent landscapes (2022-2023).
  4. Patent law principles relevant to claim drafting and validity standards.

Note: This analysis is based on information available through patent databases and standard practices; specific claim language and detailed legal interpretations should be derived from the patent document itself and legal counsel.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,969,503

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity XATMEP methotrexate sodium SOLUTION;ORAL 208400-001 Apr 25, 2017 RX Yes Yes 11,969,503 ⤷  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.