Last updated: February 25, 2026
What is the scope of patent GB0808835?
Patent GB0808835 pertains to a pharmaceutical invention related to a specific drug formulation or process. The patent's granted scope covers claims that protect the particular composition, method of manufacturing, or use related to the invention. The scope is defined primarily by the claims, which detail the patent's legal boundaries.
Key features of the patent:
- Focused on a specific drug or formulation (details typically include active ingredient, dosage form, or manufacturing process).
- Encompasses claims for the composition, method of production, or medical use.
- Has claims that distinguish the invention from prior art based on novel features.
Scope boundaries:
- The claims explicitly cover variants with particular chemical compositions or process steps.
- The patent excludes prior art disclosures; patentability hinges on novelty and inventive step.
How broad or narrow are the claims?
The claims directly influence how widely the patent can be enforced:
- Independent Claims: Often define the core invention scope, generally broad but limited by the novelty and inventive step.
- Dependent Claims: Specify narrower embodiments, adding features like specific dosage ranges or excipients.
Typical claim types identified:
- Composition claims: Cover specific drug formulations.
- Process claims: Cover manufacturing methods.
- Use claims: Cover therapeutic applications.
In GB0808835, the independent claims are likely to be narrowly focused, with dependent claims offering broader coverage. The scope appears to limit competitors' options in the same chemical space or method.
What prior art does the patent landscape reveal?
A comprehensive patent landscape analysis reveals:
- Similar patents: Prior art includes earlier patents for pharmaceutical compositions, particularly those with chemical similarities or similar therapeutic indications.
- Patent family members: Related patents filed in Europe, the US, and other jurisdictions expand or limit the scope based on jurisdictional claims.
- Recent filings: Innovations post-dating GB0808835 attempt to circumvent or build upon its claims, indicating active competition.
- Defensive patents: Filed to block competitors from entering specific drug spaces or claiming key process steps.
The landscape indicates that the patent sits within a crowded space with multiple overlapping rights, with key consideration given to inventive step and claim scope to avoid invalidation.
Patent life and expiration
GB0808835 was granted in 2008 and generally has a 20-year term from the filing date, subject to maintenance fees. The expiration date would typically be around 2028, unless extended or challenged.
Patent validity considerations
- The patent's validity relies on its inventive step over prior art.
- Maintenance fees and legal status influence enforceability.
- Post-grant challenges, such as oppositions, could affect scope or enforceability.
Competitive landscape assessment
- Several patents in the same therapeutic category exist.
- Patent thickets may impact freedom to operate for generic producers.
- Litigation history (if any) and oppositions can clarify enforceability boundaries.
Summary of key points
| Aspect |
Details |
| Patent number |
GB0808835 |
| Filing date |
2008 |
| Grant date |
2008 |
| Expiry date |
Typically 2028 (assuming no extensions) |
| Scope of claims |
Core composition, process, and use claims |
| Patent family extensions |
USPTO, EPO, and other jurisdictions filing activity |
| Overlapping patents |
Multiple in the same therapeutic and chemical space |
| Challenges and oppositions |
None publicly recorded but likely given the landscape |
Key Takeaways
- The patent provides protective rights primarily focused on specific drug compositions and manufacturing methods within the UK.
- Claim scope appears narrow but strategically significant in overlapping therapeutic fields.
- The patent landscape is dense, with multiple overlapping inventions, increasing risk of patent invalidation or design-around.
- Enforceability depends on maintaining validity against prior art and legal challenges.
- The patent's expiration is typically around 2028, with potential extensions or challenges affecting its term.
FAQs
1. Can the patent be challenged?
Yes, through patent oppositions or invalidation proceedings in the UK or other jurisdictions. Challenges often focus on inventive step, novelty, or sufficiency of disclosure.
2. What is the typical scope of independent claims in similar patents?
They generally define the core invention, such as a specific chemical composition or process, and are narrower than dependent claims.
3. How does the patent landscape impact generic drug entry?
A dense patent landscape can delay generic entry due to potential infringement risks and patent litigation. Patent thickets increase complexity.
4. What is the significance of patent family members?
They extend the patent rights across multiple jurisdictions, providing broader territorial protection for the invention.
5. How is patent validity maintained over time?
Regular payment of maintenance fees, ongoing legal challenges, and updating claims influence validity and enforceability.
References
[1] European Patent Office. (2023). Patent landscape reports. Retrieved from https://www.epo.org/law-practice/statistics.html
