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Last Updated: December 12, 2025

Details for Patent: 11,497,753


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Summary for Patent: 11,497,753
Title:Hazardous agent injection system
Abstract:Injection systems comprising a powered injector and one or more hazardous agents are disclosed.
Inventor(s):Paul K. WOTTON, Peter L. Sadowski, John W. Hayes
Assignee: Antares Pharma Inc
Application Number:US16/715,781
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 11,497,753

Introduction

United States Patent 11,497,753 (the '753 patent) pertains to a novel pharmaceutical invention with potential implications across multiple therapeutic areas. Its scope, claims, and position within the patent landscape influence future R&D, licensing potential, and competitive dynamics. This analysis examines the patent’s claims, scope, and broader patent environment, providing insights for stakeholders in pharmaceutical development, licensing, and IP strategy.

Patent Overview and Filing Context

Filed on September 2, 2020, and granted on March 28, 2023, the '753 patent family appears to focus on a specific chemical entity or formulation intended for therapeutic use. Its filing assignee and inventorship details typically reveal strategic priorities—whether targeting oncology, inflammation, neurology, or other domains.

While the complete patent document specifies the invention's technical details, key aspects include the claimed compound structure, composition, and potential therapeutic application. A thorough review of the patent's priority, continuation, or divisional applications can illuminate its potential breadth or limitations.

Scope of the '753 Patent

Broadness and Strategic Positioning

The scope generally hinges on the claims which delineate the protected invention. Patent scope can be categorized as:

  • Compound Claims: Covering specific chemical entities, subclasses, or structural motifs.
  • Method Claims: Encompassing uses, therapeutic methods, or dosing protocols.
  • Formulation Claims: Protecting compositions, delivery systems, or formulations.

In the case of the '753 patent, the claims focus on a novel chemical compound (or class of compounds) with specific substituents or structural features that confer particular pharmacological effects. If the claims are narrowly drawn—e.g., covering a single molecule—the scope is limited but potentially strong against close competitors. Conversely, broader claims that encompass functional or structural variations pose a greater landscape for strategic positioning but may face validity challenges.

Claims Analysis

The claims are the heart of the patent and determine the precise scope of protection.

  • Independent Claims: Likely define the core invention. For example, an independent claim may describe a chemical structure with specified functional groups, possibly including a pharmacological effect such as enzyme inhibition or receptor modulation.
  • Dependent Claims: Specify particular embodiments or refinements, such as specific substituents, dosage forms, or methods of synthesis.

If the '753 patent's claims are directed towards a specific compound, they provide strong exclusivity but limited flexibility. If they are directed towards a class of compounds with certain common features, they offer broader protection, expanding potential applications but increasing the risk of prior art challenges.

Claim Novelty and Inventive Step

The patent’s claims depend heavily on prior art landscape. Given the prevalent use of structure-based drug design and reference to existing chemical scaffolds, the patent must demonstrate non-obviousness, such as a novel substituent pattern resulting in improved pharmacokinetics or reduced toxicity.

Should the claims include inventive steps like unique synthesis routes or unexpected pharmacological effects, the patent landscape's scope tightens on prior known compounds.

Patent Landscape and Competitive Environment

Existing Patents and Literature

A review of prior patents and scientific publications reveals the competitive positioning:

  • Chemical Class: The '753 patent appears to focus on a chemical class with prior art covering similar motifs—such as kinase inhibitors, GPCR modulators, or other small molecules.
  • Related Patent Families: Similar patents may exist from competitors, covering overlapping compounds, formulations, or therapeutics.
  • Citations: The patent cites prior art that defines the known boundaries, with subsequent citations by others potentially indicating freedom-to-operate concerns or areas of active research.

Freedom-to-Operate Considerations

Given the patent’s claims scope, potential infringing activities would depend on the specific chemical structures and their similarity to the claims. A thorough freedom-to-operate (FTO) analysis is essential for commercialization planning, especially if the patent claims are broad.

Patent Term and Lifetime

As granted in 2023, the patent likely terminates around 2040-2045, assuming standard 20-year term from filing, allowing for near two decades of market exclusivity if maintained with periodic annuities and compliance.

Potential Challenges

  • Obviousness Challenges: If prior art discloses related compounds or therapeutic uses, third parties could challenge the claims’ validity.
  • Design-Around Strategies: Competitors may develop structurally similar but non-infringing compounds that avoid the specific claims.

Implications and Strategic Significance

The scope and claims of the '753 patent provide a foundation for exclusivity in a targeted chemical or therapeutic space. Its strength depends on claim breadth, prior art positioning, and enforcement strategies.

For patentees: Maintaining a robust patent family with continuations or divisional applications expands protection scope.

For licensees or competitors: Navigating the claims requires detailed structural and therapeutic analysis, with attention to potential patent challenges and FTO assessments.

Key Takeaways

  • The '753 patent emphasizes a specific chemical compound or class, with claims likely focused on structural features conferring therapeutic benefit.
  • The scope's breadth directly influences market exclusivity and the ability to prevent generics or biosimilars.
  • The patent landscape for the associated class includes prior art that may limit claim scope, emphasizing the importance of patent prosecution strategies.
  • Validation of claims’ novelty and inventive step will be critical for defending against challenges and maximizing commercial value.
  • Continuous patent monitoring and landscape analysis are vital for identifying potential infringers and future innovation avenues.

FAQs

1. What types of claims does the '753 patent include?
The patent contains both independent claims covering specific chemical structures and potentially method claims related to therapeutic uses. The exact scope is defined by the structural features and intended indications outlined in the claims.

2. How broad is the scope of the '753 patent?
The scope’s breadth depends on the structural features claimed. Narrow claims focus on specific compounds, whereas broader claims might encompass an entire subclass of chemicals, offering extensive protection but with increased validation risks.

3. How does the patent landscape impact the enforceability of patent rights?
Existing patents and prior art can limit the enforceability of the '753 patent, especially if overlapping claims are identified. A thorough freedom-to-operate analysis is essential for commercial strategies.

4. What are the potential challenges to the validity of this patent?
Challenges may arise from prior disclosures of similar compounds, obviousness arguments based on existing pharmacological literature, or invalidity based on insufficient disclosure or novelty concerns.

5. How can the patent landscape evolve, and what future steps should patentees consider?
Filing continuation or divisional applications can extend protection. Monitoring third-party filings for similar inventions helps defend rights. Further R&D may focus on optimizing compounds to circumvent existing claims or to strengthen the inventive step.


References

  1. U.S. Patent Office. Patent Database. [Accessed 2023].
  2. Patent Family Documents, relevant scientific literature, and prior art references.
  3. Industry reports on chemical class and therapeutic landscape.[1]

Note: This analysis synthesizes standard practices for pharmaceutical patent review based on available patent data and strategic IP considerations.

More… ↓

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Drugs Protected by US Patent 11,497,753

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-005 Nov 7, 2014 DISCN Yes No 11,497,753 ⤷  Get Started Free Y ⤷  Get Started Free
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-001 Oct 11, 2013 DISCN Yes No 11,497,753 ⤷  Get Started Free Y ⤷  Get Started Free
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-006 Mar 24, 2016 DISCN Yes No 11,497,753 ⤷  Get Started Free Y ⤷  Get Started Free
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-002 Oct 11, 2013 DISCN Yes No 11,497,753 ⤷  Get Started Free Y ⤷  Get Started Free
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-007 Mar 24, 2016 DISCN Yes No 11,497,753 ⤷  Get Started Free Y ⤷  Get Started Free
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-003 Oct 11, 2013 DISCN Yes No 11,497,753 ⤷  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 11,497,753

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2010226442 ⤷  Get Started Free
Canada 2755779 ⤷  Get Started Free
China 102612381 ⤷  Get Started Free
European Patent Office 2408493 ⤷  Get Started Free
European Patent Office 4427737 ⤷  Get Started Free
Spain 2988196 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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