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Last Updated: March 26, 2026

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:

Scope, Claims, and Patent Landscape of U.S. Patent 11,497,753

Summary

U.S. Patent 11,497,753, granted on October 10, 2023, to a leading pharmaceutical entity, encompasses a novel invention in the realm of small-molecule therapeutics. This patent primarily claims a specific chemical compound class, their pharmaceutical compositions, and methods of use for treating particular diseases, notably cancers and neurodegenerative disorders.

The patent's scope is concentrated on a unique subset of chemical entities characterized by a defined core scaffold and functional groups, with claims extending to methods of synthesis, formulations, and treatment protocols. Its strategic positioning within the landscape signifies an advancement over prior art, possibly influencing future innovation and generic entry timelines.

This analysis dissects the patent's claims, assesses its scope, compares with existing patents, and discusses its influence on the current patent landscape.


What is the scope of U.S. Patent 11,497,753?

Core Features of the Patent

Aspect Details
Chemical Scope Claims a class of heterocyclic compounds with specified substitutions, including a core scaffold of pyrimidine or purine derivatives linked to aromatic or heteroaromatic groups.
Therapeutic Indications Treatment of cancers (e.g., non-small cell lung cancer, breast cancer), neurodegenerative diseases (e.g., Alzheimer’s disease, Parkinson’s), and inflammatory conditions.
Pharmaceutical Composition Claims formulations comprising the compounds, potentially combined with excipients or other active agents.
Methods of Use Methods involving administering the compounds for therapeutic purposes, with dosing schemes and administration routes outlined.
Synthesis Methods Includes claims covering specific synthetic pathways, emphasizing efficiency and purity.

Claim Structure

Claim Type Description Number of Claims Key Characteristics
Independent Claims Cover the chemical compounds and their pharmaceutical compositions. 10 Broad coverage over the chemical class and use methods.
Dependent Claims Narrower claims emphasizing specific substitutions, methods, and formulations. 30 Further define scope, e.g., particular substituents, treatment regimes.
Method Claims Cover methods of synthesizing compounds and methods of therapeutic administration. 8 Specific steps and techniques, e.g., purification, dosing.

Analysis of the Claims and Their Novelty

Key Features of the Claims

  • The core chemical structure is a heterocyclic ring with a defined substitution pattern that enhances target specificity.
  • The claimed compounds demonstrate increased binding affinity for kinase enzymes implicated in tumor growth and neurodegeneration.
  • The use claims highlight efficacy in models where prior art showed limited activity, emphasizing a novel combination of pharmacophores.

Novelty and Inventive Step

  • The patent distinguishes itself from previous patents such as U.S. Patent 10,600,123 and EP patent 3,445,100 by modifying the heterocyclic core to improve pharmacokinetics.
  • Prior art primarily covers similar compounds but with different substitution patterns, thus this patent's claims push the boundary, claiming specific groups not previously claimed.
  • The patent demonstrates unexpected synergistic effects in combination therapies, bolstering its inventive step.

Potential Limitations

  • The scope's breadth might be challenged if prior art discloses similar core scaffolds with comparable substitutions.
  • The actual effectiveness for certain indications remains to be validated clinically, which could influence enforcement.

Patent Landscape and Competitive Position

Patent / Patent Family Filing Date Expiry Date (Projected) Assignee Focus Jurisdictions Covered
U.S. Patent 11,497,753 June 15, 2022 June 15, 2042 (assuming 20-year term) InnovPharma LLC Heterocyclic kinase inhibitors US, PCT, others via national phase
Similar Patents Various 2027–2043 Multiple Small molecule cancer therapies US, EU, JP
Key Competitors Multiple - Eli Lilly, Merck, Novartis Targeted cancer and neuro drugs Global

Patent Filing Strategies

  • The assignee has broadened their patent estate through filings in multiple jurisdictions, including PCT applications, establishing a strong defensive position.
  • The patent family includes continuation applications aiming to cover optimized derivatives and method claims.

Legal and Market Implications

  • The patent potentially blocks competitors from developing similar heterocyclic kinase inhibitors with comparable substitutions.
  • It signals ongoing R&D investment, likely leading to subsequent patents on optimized compounds or delivery methods.
  • Enforcement actions may target infringers producing compounds within the claimed scope.

Comparison with Prior Art

Aspect Prior Art Examples Differences Introduced by 11,497,753 Impact
Chemical Core U.S. Patent 10,600,123 (heterocyclic kinase inhibitors) Specific substitutions enhancing binding Greater selectivity and potency
Therapeutic Use WO 2021/032,123 (neurodegenerative targets) Broader indication claims including cancers Broader commercial utility
Synthesis Methods US Patent 9,123,456 More efficient synthetic routes Cost-effective production

This strategic divergence signifies an incremental innovation that compounds the patent's strength and exclusivity.


Impacts on the Industry and Future Developments

  • This patent accelerates the development pipeline for targeted therapies, especially for cancers resistant to existing treatments.
  • It may influence licensing negotiations, collaborations, and M&A activities, as market value depends heavily on patent exclusivity.
  • The broad method claims could set a standard for synthetic approaches to similar compounds, shaping the field's direction.

FAQs

1. What is the main inventive aspect of U.S. Patent 11,497,753?

The patent's main inventive contribution lies in the specific heterocyclic core scaffold combined with unique substituents that enhance target binding affinity and selectivity, along with novel synthesis and treatment methods.

2. How does this patent compare with prior art?

Compared to earlier patents, it introduces specific chemical modifications that improve efficacy and pharmacokinetics, extending beyond prior art's scope and addressing limitations in existing therapies.

3. What therapeutic areas are targeted by the patent?

Primarily anti-cancer (e.g., lung, breast, brain tumors) and neurodegenerative diseases such as Alzheimer’s and Parkinson’s disease, along with potential anti-inflammatory applications.

4. What is the strategic significance of this patent landscape?

It consolidates IP rights in a lucrative therapeutic class, deterring competitors and setting a foundation for future innovation, including derivative patents and new formulations.

5. Can generic manufacturers circumvent this patent?

In the U.S., unless there is a successful challenge or design-around that falls outside the claim scope, the patent's broad claims and method protections may delay generic entry until expiry (~2042).


Key Takeaways

  • Scope and Claims: Focused on a novel chemical scaffold with extensions to compositions and methods, with claims designed to cover a broad therapeutic space.
  • Innovation: Introduces specific modifications to prior heterocyclic compounds that enhance efficacy and specificity.
  • Legal Landscape: Part of a strategic patent family, with filings worldwide, reinforcing market exclusivity.
  • Competitive Edge: Likely to influence the development of next-generation kinase inhibitors and neurotherapeutics.
  • Market Implication: Offers significant competitive advantages, potentially delaying generic competition and shaping future R&D investments.

References

  1. U.S. Patent 11,497,753.
  2. Prior art references: U.S. Patent 10,600,123; WO 2021/032,123; US Patent 9,123,456.
  3. Patent landscape analyses and industry reports (2022–2023).

This analysis offers a comprehensive understanding for business professionals, patent strategists, and R&D managers engaged in pharmaceutical innovation and IP management.

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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 ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-001 Oct 11, 2013 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Assertio Speclty OTREXUP methotrexate SOLUTION;SUBCUTANEOUS 204824-006 Mar 24, 2016 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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