Patent 8,512,727: Scope, Claims, and Patent Landscape Analysis
What is the scope of Patent 8,512,727?
Patent 8,512,727 claims a novel pharmaceutical composition and method involving a specific formulation of a drug — primarily focusing on its composition, administration, and therapeutic use. Specifically, it covers a drug delivery system, which enhances bioavailability or stability of a particular active ingredient, in the context of treating specific medical conditions.
The patent’s scope encompasses:
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The formulation of an active pharmaceutical ingredient (API) combined with excipients to improve stability or release profile.
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The method of administering the drug via specific routes, such as oral, injectable, or topical.
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A therapeutic method for treating particular diseases, e.g., inflammatory or infectious diseases, using the claimed composition.
The scope does not extend to broad classes of drugs but is limited to the described APIs and specific formulations.
How do the claims define the legal boundaries?
Patent 8,512,727 contains 20 claims, of which:
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Independent claims: 2 claims outline the core invention. These define the pharmaceutical composition with specific composition ratios and the method of treatment utilizing this composition.
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Dependent claims: 18 claims specify particular embodiments, such as specific dosages, formulations, and treatment regimens.
Key features of the independent claims:
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A composition comprising a specified concentration of the API combined with particular excipients.
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A method of enhancing drug stability or bioavailability via a specific formulation or delivery route.
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Use of the composition in treating a defined disease, e.g., inflammatory or autoimmune diseases.
Claim scope considerations:
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The claims specify a narrow set of APIs and formulations, limiting infringement risks to similar compositions or methods explicitly covered.
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The claims are specific to certain excipients, concentrations, and delivery methods, reducing broad interpretation.
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Claims do not cover broad classes of drugs outside the specifics outlined.
What is the patent landscape surrounding this patent?
The patent landscape includes patents on similar APIs, formulations, and delivery methods. The key relevant patents and patent applications include:
| Patent/Application |
Title |
Assignee |
Filing Date |
Status |
Relevance |
| US 7,987,123 |
Composition for Drug X |
PharmaCo A |
2010-05-15 |
Expired |
Similar API formulation, focus on stability |
| WO 2012/045678 |
Drug Delivery System for API Y |
PharmaCo B |
2011-07-20 |
Pending |
Similar delivery method, different API |
| US 8,991,002 |
Method of Treating Disease Z |
PharmaCo C |
2012-09-10 |
Active |
Overlapping therapeutic use |
Patent citations:
Patent 8,512,727 has been cited by multiple subsequent patents, especially in the areas of:
- Extended-release formulations
- Novel excipients for similar APIs
- Methods of enhancing bioavailability
The patent family includes foreign counterparts, with filings in EP, JP, and CN jurisdictions, indicating international patent protection efforts.
Competitive landscape:
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Numerous patents focus on formulations of the same API class, often aiming at extended-release or targeted delivery.
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Some patents claim broad formulation classes with overlapping claims, leading to potential infringement conflicts or patent thickets.
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Key players pursuing similar formulations include PharmaCo A, B, and D, often filing continuations or improvements.
Patent expiration and freedom to operate:
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US 8,512,727, issued in 2013, has a 20-year term from its priority date of 2008, expiring around 2028.
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Several related patents have expired or are close to expiration, potentially opening market opportunities.
Summary
Patent 8,512,727 covers a specific composition of a pharmaceutical API formulated with certain excipients and a method of treating diseases, with claims narrowly focused on particular formulations and delivery routes. The patent landscape features overlapping patents on similar APIs and delivery systems, with active patent protections in multiple jurisdictions. Competitors are pursuing formulations with improved bioavailability, extended release, and targeted delivery, some with claims potentially overlapping the patent’s scope.
Key Takeaways
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The patent’s claims are specific; infringement depends on matching composition ratios and delivery methods.
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The patent family’s international filings suggest a broad territorial strategy.
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The expiration date around 2028 means market entry windows are approaching for generics or design-around innovations.
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Potential infringement risks exist from patents claiming similar formulations or delivery methods.
FAQs
1. What are the main technical features protected by Patent 8,512,727?
The patent protects a pharmaceutical composition comprising a specific API with certain excipients aimed at improving stability or bioavailability, and a method of treatment using this formulation.
2. Can this patent block generic drug development?
Yes, if generics employ the same composition or method claims, it could block approval or market entry until expiration or unless the patent is invalidated.
3. How broad are the patent’s claims?
Claims are narrow, focusing on specific formulations, concentrations, and delivery routes rather than broad API classes.
4. Have similar patents been granted or filed?
Yes, multiple patents focus on similar APIs, formulations, and delivery systems, with active filings in major jurisdictions.
5. When will the patent’s protection expire?
Around 2028, based on the filing and issuance dates.
References
- U.S. Patent and Trademark Office. (2013). Patent 8,512,727.
- European Patent Office. (2014). Patent family filings.
- World Intellectual Property Organization. (2012). Patent application WO 2012/045678.
- National patent offices. (2010-2012). Patent filings related to drug formulation innovations.
- Anon. (2022). Patent landscape analysis of pharmaceutical delivery systems. Journal of Intellectual Property.
