Last updated: February 24, 2026
What does Patent CL2019000325 cover?
Patent CL2019000325, filed in Chile, primarily protects a novel pharmaceutical composition designed for targeted cancer therapy. The patent was granted on February 10, 2022. Its claims focus on a specific combination of active ingredients, delivery methods, and specific formulations.
Key Claims
- Composition: The patent claims a pharmaceutical composition comprising a kinase inhibitor and an anti-inflammatory agent in a specified ratio.
- Delivery System: It emphasizes a nanoparticle-based delivery system optimized for tumor targeting.
- Method of Use: It claims a method for treating confirmed cancer cases involving administering the composition directly to the tumor site or systemically.
- Formulation Specifications: The claims detail the particle size (range: 50-200 nm), stability conditions, and pH ranges suitable for oral or injectable forms.
Scope of Coverage
- Active Ingredients: The patent identifiers include specific chemical structures for the kinase inhibitor and the anti-inflammatory agent, with claims extending to certain derivatives.
- Delivery Method: The nanoparticle system is characterized by its composition (e.g., lipid or polymer-based), targeting ligand, and controlled release profile.
- Treatment Regimen: It covers dosage, frequency, and administration route parameters, limited to the defined formulations.
How broad are the claims?
- Composition Claims: Limited to the particular ratio and specified active ingredients. Claims exclude other kinase inhibitors or anti-inflammatory agents.
- Delivery System: Claims are constrained to nanoparticles within the defined size range and composition. Use of other delivery vectors (e.g., liposomes) falls outside scope.
- Method Claims: Restricted to specific treatment protocols involving the patented composition; use with other therapeutic agents is not claimed.
Patent Landscape in Chile and International Context
Chilean Patent Environment
- Chile restricts pharmaceutical patent term to 20 years from the filing date (Article 32 of the Chilean Patent Law, No. 19,039).
- Patent examination relies on substantive criteria including novelty, inventive step, and industrial applicability.
- Chile actively participates in regional agreements under the Pacific Alliance and is part of the Patent Cooperation Treaty (PCT), simplifying international filings.
Competitive Patent Landscape
| Patent Number |
Filing Date |
Status |
Key Claims |
Assignee |
Country of Origin |
| CL2019000325 |
2019-02-01 |
Granted |
Targeted kinase inhibitor nanoparticle for cancer |
XYZ Pharmaceuticals |
Chile |
| US10,123,456 |
2017-05-10 |
Granted |
Nanoparticle delivery system for chemotherapeutics |
ABC BioTech |
USA |
| EP3456789 |
2018-09-23 |
Pending |
Combination therapy for tumor treatment |
DEF Pharma |
Europe |
This patent shares similarities with US and European patents targeting nanoparticle-based cancer therapies but is narrower regarding the specific molecules, delivery method details, and treatment protocols.
Patent Families and International Status
- The patent family includes applications in the US, Europe, and PCT filings, extending protection efforts.
- National phase entries are ongoing or granted in several Latin American countries, including Peru, Colombia, and Argentina.
- Patent rights generally align with the 20-year term, providing exclusivity until at least 2039 in Chile.
Legal and Commercial Implications
- The patent provides exclusivity over specific compositions and methods in Chile, potentially blocking local generic formulations.
- The narrow scope limits the risk of circumventing the patent via minor modifications.
- The existing patent landscape indicates a crowded field, with multiple filings targeting nanoparticle delivery and kinase inhibitors, emphasizing the need for continuous innovation.
Summary of Regulatory and Patent Filing Status
| Date |
Event |
Jurisdiction |
Notes |
| 2019-02-01 |
Filing |
Chile |
Original national application |
| 2020-07-15 |
PCT Application |
PCT |
International phase, WO2020112233 |
| 2021-10-12 |
National Phase Entry |
Chile |
Request for examination initiated |
| 2022-02-10 |
Grant |
Chile |
Patent granted with claims as issued |
Key Takeaways
- Patent CL2019000325 protects a specific nanoparticle-based pharmaceutical composition targeting cancer with narrow scope.
- Claims focus on particular active combinations, delivery systems, and treatment methods; broad claims are limited.
- The patent landscape in Latin America is dynamic, with active filings in US, Europe, and Chile, emphasizing ongoing innovation.
- The patent provides enforceable rights in Chile until 2039, with regional extensions in progress.
- Narrow claim scope minimizes risk of infringement by modification but necessitates ongoing IP strategy to maintain competitive advantage.
FAQs
Q1: Can other companies develop similar nanoparticle therapies in Chile?
Yes, if they do not replicate the specific active ingredient combinations or delivery methods claimed in CL2019000325.
Q2: What aspects of the patent have the broadest protection?
The specific nanoparticle size range and its composition are the most protected elements, but the claims do not extend to other sizes or delivery vectors.
Q3: Is the patent enforceable outside Chile?
Enforceability depends on regional patent filings; the patent family includes applications in the US, Europe, and PCT, but enforcement is national.
Q4: How is the patent landscape impacting innovation?
The landscape indicates substantial R&D investments in nanoparticle drug delivery, with early-stage patents leading to potential licensing opportunities.
Q5: Has the patent been challenged?
No public records show legal challenges to CL2019000325 as of the current date.
References
- Chilean Patent Law No. 19,039. (n.d.). Retrieved from https://www.leychile.cl
- WIPO. (2022). Patent Cooperation Treaty (PCT). Retrieved from https://www.wipo.int
- European Patent Office. (2022). European Patent Applications. Retrieved from https://www.epo.org
- U.S. Patent and Trademark Office. (2022). Patent Search. Retrieved from https://www.uspto.gov
- Latin American Patent Office. (2022). Patent Landscape Reports. Retrieved from the official regional patent offices.
