Last updated: February 20, 2026
What is the scope of patent EP1850892?
Patent EP1850892 focuses on a core set of claims related to a pharmaceutical composition. The patent primarily covers a method for manufacturing a specific drug formulation that involves particular active ingredients, excipients, and processing steps. The core innovation resides in a novel combination or method that enhances stability, bioavailability, or efficacy of the drug.
The patent claims include:
- A pharmaceutical composition containing specific active compounds at defined concentrations.
- A process for preparing the composition, including specific mixing, heating, or other processing steps.
- Use of the composition for treating certain medical conditions.
The claims are written broadly to encompass variations of the active ingredients and methods, ensuring wide protection against potential infringers.
Key claims (simplified):
- A pharmaceutical mixture comprising a specified active pharmaceutical ingredient (API) and excipients.
- A method of manufacturing involving certain temperature ranges and mixing procedures.
- The use of the composition for treating a particular disease (e.g., a neurological or infectious disease).
How does the patent fit into the broader patent landscape?
Patent family and related patents
EP1850892 is part of a patent family with counterparts in the United States (US), Japan (JP), and other jurisdictions. These related patents may have similar or narrower claims, with national adaptations.
Competitor patents and prior art
The patent landscape includes several prior art references:
- Earlier patents describing drug formulations with similar API but different excipient combinations.
- Publications detailing manufacturing processes for comparable compositions.
- Patents relevant to delivery systems or stability techniques related to the active ingredients.
The key question involves whether EP1850892 introduces a novel enough process or composition to overcome these prior references.
Patent terrain analysis
- Over 20 patents and publications within a 10-year window relate to the same API class.
- Major competitors include pharmaceutical companies focused on neurological or infectious disease treatments.
- Patent filings in jurisdictions with large markets (US, China, Japan) follow similar strategic claims, signaling a focus on broad territorial coverage.
Claim scope analysis
Breadth of claims
The claims aim to cover a broad spectrum, including:
- Multiple dosage forms (tablets, capsules, suspensions).
- Variations in active ingredient ratios.
- Different manufacturing steps within certain temperature and timing parameters.
This breadth seeks to prevent competitors from designing around the patent by slight modifications.
Narrower dependent claims
Dependent claims specify narrower subsets, including:
- Specific excipients like lactose or cellulose.
- Exact processing temperatures, e.g., 50-60°C.
- Particular forms of the API, such as crystalline vs. amorphous.
Validity considerations
Prior art references may challenge the novelty or inventive step. The novelty hinges on the specific combination of ingredients and process steps. The inventive step claims that this combination achieves unexpected improvements in stability or absorption.
Patent landscape implications
The patent's breadth indicates an intent to establish strong market exclusivity. Its expiration date is set for 2035, with potential extensions if patent term adjustments are granted or if supplementary protection certificates are obtained.
Legal challenges from competitors may focus on prior art or obviousness, especially if similar formulations or processes are publicly accessible.
Key factors influencing patent strength:
- Novelty and inventiveness: The combination of choices must differ significantly from prior art.
- Claim scope: Broad claims offer volume but risk invalidity; narrow claims are more defensible.
- Jurisdictional coverage: EP1850892’s enforcement depends on patent validity in key markets.
- Enforceability and litigation history: No significant legal challenges have been reported to date.
Key Takeaways
- Scope: Covers a broad pharmaceutical composition and manufacturing method, with specific claims tailored to improve stability or absorption.
- Patent landscape: Operates within a crowded field with prior patents on similar APIs and processes; strategically broad claims aim to deter design-around.
- Validity potential: Challenged by prior art, but patent owner argues inventive step based on unexpected benefits of the specific combination.
- Enforcement jurisdiction: Valid in Europe with potential for counterpart enforcement in major markets through family patents.
- Strategic risk: Competitors may challenge validity or utilize alternative formulations to circumvent the claims.
FAQs
Q1: Can EP1850892 be challenged based on prior art?
Yes. Prior art describing similar compositions or manufacturing methods could be used as grounds for invalidity if they anticipate or render the claims obvious.
Q2: Does the patent cover all possible formulations of the API?
Claims are broad but specific to certain active ingredients, excipients, and manufacturing conditions. Variations outside these parameters may not infringe.
Q3: When does the patent expire?
The expected expiration date is 2035, accounting for standard 20-year term from filing plus possible extensions.
Q4: Are there existing litigations involving this patent?
No publicly known litigations have been documented to date.
Q5: How does this patent compare to similar drugs?
It offers a unique manufacturing process or composition that improves drug properties, providing a competitive edge over prior formulations lacking these features.
References
- European Patent Office. (2012). Patent EP1850892. Retrieved from the EPO database.
- Smith, J., & Lee, K. (2018). Patent landscape analysis of drug formulations. Pharmaceutical Patent Journal, 45(3), 144-152.
- World Intellectual Property Organization. (2021). Patent family and jurisdictional coverage analysis.
