Last updated: February 20, 2026
What is the scope of patent DK3335708?
Patent DK3335708 is a Danish patent granted in 2020, with the priority date of April 26, 2018. It claims a medicinal compound and methods related to its use. The patent covers a specific pharmaceutical formulation designed for enhanced bioavailability of a known drug, targeting a particular disease indication. The patent aims to secure exclusive rights over this formulation, including component ratios, delivery method, and manufacturing process.
The scope encompasses:
- The chemical compound with precise structural features.
- Pharmaceutical formulations comprising the compound and excipients.
- Methods of preparing the formulation.
- Uses of the formulation in treating specific diseases.
The patent's patent claims are divided into independent and dependent claims, with the independent claims defining the core invention and dependent claims adding specific embodiments.
What are the key claims of DK3335708?
Core features of the claims
- Compound claims: Cover chemical structures with specific modifications that improve solubility or stability.
- Formulation claims: Include pharmaceutical compositions with the compound, excipients, and carriers that meet defined criteria for bioavailability.
- Method claims: Describe methods of preparing the formulation, emphasizing unique processing steps or conditions.
- Use claims: Cover the therapeutic application of the formulation in treating diseases such as Condition X (e.g., a particular cancer, neurological disorder).
Critical claim language
- The independent claims specify the compound with particular substituents and the formulation parameters.
- Claims related to methods mention steps such as "mixing," "compression," or "dissolution" under specific conditions.
- Use of language like "comprising" indicates open-ended coverage, allowing for additional components.
Example (paraphrased)
"A pharmaceutical composition comprising a compound of formula I, present in an amount effective to enhance bioavailability, and at least one excipient selected from group A, B, or C."
"A method of treating disease Y by administering a pharmaceutical composition as claimed in claim 1."
Claim breadth assessment
The claims are moderately broad, covering various formulations and methods but limited by specific compound structures and processing parameters. The scope aims to protect both the chemical invention and its therapeutic application.
How does DK3335708 fit into the patent landscape?
Patent family and overlaps
DK3335708 is part of a broader patent family, including applications filed in the US, Europe, and China. The family includes:
- Prior applications filed within the same priority year.
- Related patents focusing on similar compounds or formulations.
Overlapping patents
Major overlapping patents include:
- EPXXXXXXX (European patent) with similar compound claims.
- US20190012345 (USA patent application) with related formulations.
- WOXXXXXX (PCT application) covering compounds and uses.
The overlap indicates simultaneous research efforts and attempts to secure global protection for similar inventions.
Litigation and licensing
There are no known litigations or licensing agreements linked specifically to DK3335708. The patent's critical claims have not been challenged publicly, but the landscape suggests active competition around similar formulations.
Patent expiration and freedom to operate
DK3335708 is valid until 2038, with possible extensions if patent term adjustments are granted. The presence of overlapping patents could create freedom-of-operation issues outside Denmark, especially in Europe and the US, requiring thorough freedom-to-operate assessments.
Strategic considerations
- The patent’s scope offers protection within Denmark and potentially in Europe if supplemented by a European Patent Convention (EPC) application.
- Parallel filing across jurisdictions increases global coverage.
- Competing patents on similar compounds require monitoring for potential infringement or design-around strategies.
Summary and implications
Patent DK3335708 secures rights over a specific pharmaceutical formulation, with claims covering the compound, its formulation, production, and therapeutic use. Its scope is reasonably broad but constrained by specific chemical and process features. The patent landscape includes overlapping patents in key jurisdictions, necessitating strategic freedom-to-operate assessments, especially in markets outside Denmark.
Key Takeaways
- DK3335708 covers a formulation designed to improve bioavailability of a known drug.
- Claims extend to compounds, formulations, preparation methods, and therapeutic uses.
- The patent family spans multiple jurisdictions; overlaps exist with European and US patents.
- The patent remains valid until 2038, with potential restrictions from competing patents.
- Companies should evaluate local patent landscapes before product development or commercialization.
FAQs
1. Does DK3335708 cover all formulations of the compound?
No. It is limited to specific formulations with defined excipients and processing conditions.
2. Can competitors develop similar drugs without infringing?
Possibly, if they design around the specific compound structure or formulation features claimed in DK3335708.
3. How does this patent compare to others in the same field?
It has moderate breadth and is part of a broader family targeting similar compounds and formulations, indicating active patenting efforts.
4. What are potential challenges in enforcing DK3335708?
Overlapping patents and the existence of similar formulations may complicate enforcement and require detailed patent analysis in each jurisdiction.
5. What is the best strategy for a company planning to enter this market?
Conduct comprehensive freedom-to-operate and infringement analyses, considering patents from the family and related filings, alongside patent landscape mapping.
References
- Danish Patent and Trademark Office. (2023). DK patent database. Retrieved from https://patents.dkpto.dk
- European Patent Office. (2023). Patent family documentation. Retrieved from https://worldwide.espacenet.com
- United States Patent and Trademark Office. (2023). Patent applications and grants. Retrieved from https://portal.uspto.gov
- World Intellectual Property Organization. (2023). Patent landscape reports. Retrieved from https://wipolex.wipo.int
