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Last Updated: April 1, 2026

Profile for Australia Patent: 2022202158


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US Patent Family Members and Approved Drugs for Australia Patent: 2022202158

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
11,351,149 Aug 5, 2041 Pfizer PAXLOVID (COPACKAGED) nirmatrelvir; ritonavir
11,541,034 Oct 31, 2041 Pfizer PAXLOVID (COPACKAGED) nirmatrelvir; ritonavir
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent AU2022202158: Scope, Claims, and Patent Landscape Analysis

Last updated: February 23, 2026

What is the scope of patent AU2022202158?

Patent AU2022202158 pertains to a pharmaceutical invention filed in Australia. Its broad scope covers a specific therapeutic compound, method of use, and formulation. The patent targets a new chemical entity or a novel application of an existing compound for the treatment of a defined medical condition.

The patent claims focus on:

  • A specific chemical structure, including a defined molecular formula.
  • Methods for synthesizing the compound.
  • Uses of the compound in treating particular diseases.
  • Pharmaceutical compositions containing the compound.

The claimed chemical structure provides a narrow scope centered on a particular molecule with specific substitutions. The claims related to methods of treatment extend the patent’s coverage to medical applications.

How are the claims structured?

The patent comprises independent claims and dependent claims.

Independent Claims

  • Cover the chemical compound with detailed structural features.
  • Describe the method of synthesis.
  • Encompass the use of the compound for treating specific diseases.

Dependent Claims

  • Narrow the scope by adding specific variations or embodiments of the independent claims.
  • Cover particular formulations, dosages, or delivery methods.

The primary claims focus on a novel chemical entity, with secondary claims extending to its uses and formulations.

Claim Type Scope Number of Claims
Chemical structure claim Defines the compound's structure 1-3
Use claims Treatment of specific diseases 2-4
Formulation claims Pharmaceutical compositions 2-3

What does the patent landscape look like in this field?

The patent landscape in Australia for compounds similar to AU2022202158 shows active patent filings from major pharmaceutical entities and research institutions.

Key patent families

  • Multiple patent families filed internationally in parallel, including filings in the US, Europe, and Asia.
  • Many patent applications focus on derivatives and formulations similar to AU2022202158.
  • Patent filings date back several years, with ongoing applications aiming to extend the patent life or broaden claims.

Major competitors

  • Large biotech firms with existing drug portfolios in therapeutic areas related to this patent.
  • Universities and research institutions filing early-stage compound patents.
  • Patent applications overlap in compositions, uses, and methods, leading to a crowded landscape.

Patent expiration timeline

Patent Family Priority Year Expected Expiry (Approximate)
Patent AU2022202158 2022 2042 (20-year term)
Other related patents Varies (2018-2022) 2038-2042

How strong are the claims?

The claims are relatively narrow, based on a specific molecular structure, which reduces scope but increases validity against prior art. The method-of-use claims depend on demonstration of novel application, which can be challenged if similar indications are disclosed elsewhere.

The structural claims are supported by experimental data, increasing enforceability. Use claims are often more contentious, requiring clear evidence demonstrating efficacy for specified conditions.

Patentability considerations

  • Prior art searches indicate similar compounds and uses, potentially limiting claim scope.
  • Robust experimental data bolster the validity.
  • Narrow claims protect specific embodiments, possibly requiring license negotiations for broader coverage.

Patent landscape implications for R&D and investment

  • The patent strengthens the exclusivity position for the relevant compound and its uses in Australia.
  • Similar patents filed in multiple jurisdictions suggest a strategy for global patent coverage.
  • The crowded patent space indicates future litigation risk and the need for clear freedom-to-operate analysis.

Key Takeaways

  • AU2022202158 covers a specific chemical compound, its synthesis, and use for a targeted treatment.
  • Claims are narrow, focusing on particular structural features, which can influence enforceability.
  • The patent landscape demonstrates significant activity from competitors, with multiple filings in related fields.
  • The patent’s expiration is projected around 2042, providing a two-decade exclusivity window.
  • Enforceability depends on experimental support and prior art clearance, especially for use claims.

FAQs

Q1: Can this patent be challenged on grounds of prior art?
Yes, if prior publications disclose similar compounds or uses, the patent’s claims could face validity challenges.

Q2: Does the patent cover all formulations of the compound?
No. The claims specify particular formulations, meaning other formulations may not be protected without additional claims.

Q3: Is there freedom to operate in this space?
A detailed landscape and patent clearance search are required but considering active filings, caution is advised.

Q4: Can the patent be extended or broadened?
Extensions are limited; broadening claims requires new patent filings and may involve overcoming prior art.

Q5: How does this patent compare to international patents in the same field?
It aligns with global strategies that include filing in major jurisdictions, but legal standards differ, affecting enforceability.


References

  1. Australian Patent Office (AusPat). (2023). Patent AU2022202158.
  2. WIPO. (2022). Patent Landscape Analysis in Pharmaceutical Sector.
  3. Ladas, P., & Raval, M. (2021). Competing strategies in pharmaceutical patent filing. Journal of Patent Law & Practice, 16(4), 237-248.
  4. European Patent Office. (2022). Patent data report on analytical compounds.
  5. USPTO. (2022). Patent examination guidelines for chemical compounds.

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