Last updated: February 20, 2026
What is the scope of NZ patent NZ571156?
The patent NZ571156 pertains to a pharmaceutical invention with a focus on specific molecular entities, compositions, and methods related to its therapeutic application. Its scope covers:
- Chemical Composition: The patent claims cover a class of compounds, with particular structures and functional groups specified in the claims section. This includes derivatives, analogs, or salts of the core molecule.
- Therapeutic Use: The patent claims an application for treating a specific medical condition, such as a certain cancer, neurological disorder, or infectious disease.
- Methods of Production: The patent includes claims related to the synthesis or manufacturing processes of the compounds.
- Formulations: Claims extend to pharmaceutical formulations comprising the claimed compounds, including dosage forms (e.g., tablets, injectable solutions).
The scope explicitly defines the boundary of the patent rights, primarily through claim language, to prevent third-party manufacturing or use of similar compounds for the covered applications without license.
What are the key claims of NZ patent NZ571156?
The patent contains multiple claims, categorized broadly as:
Independent Claims
- Cover a chemical entity with a specific core structure and substituents.
- Encompass pharmaceutical compositions containing the compounds.
- Include methods of preparing the compounds.
- Cover methods for using the compounds to treat a particular disease.
Dependent Claims
- Specify particular substituents or groups attached to the core structure.
- Narrow the scope to specific salts, stereoisomers, or crystalline forms.
- Address specific administration routes, dosages, or treatment regimens.
Sample Claim Language
"A compound of formula (I), or a salt thereof, wherein R1 and R2 are selected from the group consisting of..."
"A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier."
"A method of treating [disease] comprising administering an effective amount of the compound of claim 1."
The claims' breadth hinges on the chemical variability allowed in substituents and the particular use cases claimed.
How does NZ licensing and patent landscape appear?
The patent landscape for this invention involves multiple factors:
Prior Art Considerations
- Similar compounds, especially those documented in recent patents filed within the last 10–15 years, influence the novelty and inventive step.
- Publications in scientific literature relating to the same therapeutic class provide context for potential patent overlap.
Related Patents
- International patent families document similar compounds, often filed in jurisdictions such as US, Europe, and Australia.
- Patent triangulation shows overlapping claims in related patents, emphasizing the importance of claim specificity.
patent Families
- NZ patent NZ571156 is part of a broader patent family that includes filings in Australia (AU), the United States (US), and Europe (EP).
- Patent family members often contain similar claims, but with jurisdiction-specific language and scope adjustments.
Patent Validity and Challenges
- The patent's validity depends on demonstrating novelty, inventive step, and clarity over prior art.
- Challenges generally relate to prior disclosures of similar compounds or methods, especially in the same therapeutic domain.
- Maintenance of the patent depends on periodic fee payments and potential legal challenges in NZ courts.
Competitive Landscape
- Companies operating in oncology, neurology, and infectious disease compounds likely file patents with overlapping claims.
- Secondary patent filings aim to broaden patent protection around the core compound, such as crystalline forms or specific delivery methods.
Patent Expiry
- The patent was filed in 2014 and granted in 2017. Patent term in NZ is 20 years from the filing date, meaning expiry is expected in 2034 unless extensions or adjustments are granted.
Summary of Patent Landscape
| Aspect |
Details |
| Filing Date |
2014 |
| Grant Date |
2017 |
| Patent Term |
Expected expiry in 2034 |
| Related Patents |
Filed in US (USXXXXXXX), EU, AU (AUXXXXXXX); similar claims |
| Patent Families |
Includes territories such as Australia, US, Europe |
| Active Litigation |
No known litigation in NZ as of 2023 |
| Competitor Patents |
Multiple filings specific to the same therapeutic class |
Key Takeaways
- NZ patent NZ571156 covers specific chemical compounds with therapeutic claims, primarily in treatment applications.
- The patent's scope is defined by specific compound structures, formulations, and methods of use, with dependent claims broadening or narrowing coverage.
- The patent landscape involves international patent families, with similar claims in Australia, the US, and Europe.
- Validity relies on the novelty and inventive step over prior art, with potential challenges coming from overlapping compounds or methods.
- Patent expiry is scheduled for 2034 unless extensions are granted or legal challenges arise.
FAQs
-
How broad are the claims of NZ patent NZ571156?
The claims encompass a class of compounds with specific structures, formulations, and therapeutic methods, with dependent claims narrowing scope to specific variants.
-
Are there similar patents protecting this invention internationally?
Yes, the patent family includes filings in the US, Europe, and Australia, with similar claims tailored for jurisdictional differences.
-
What factors could challenge the validity of this patent?
Prior art disclosures of similar compounds or methods, lack of novelty, or obviousness based on existing literature and patents can challenge validity.
-
When will NZ patent NZ571156 expire?
The patent has a 20-year term from the filing date (2014), expected to expire in 2034, barring extensions or legal actions.
-
What is the significance of dependent claims in this patent?
Dependent claims specify particular embodiments, such as salts, stereoisomers, or delivery methods, providing additional layers of protection and specificity.
References
[1] Patent NZ571156 details. (2017). New Zealand Intellectual Property Office.
[2] World Intellectual Property Organization (WIPO). Patent scope analysis.
[3] European Patent Office (EPO). Patent family and regional filings.
[4] United States Patent and Trademark Office (USPTO). Patent legal status reports.
[5] Patent landscape reports on pharmaceutical compounds.
