Summary
United States Patent 7,598,276 (hereafter “the '276 patent”), granted on October 6, 2009, relates to a novel pharmaceutical composition designed to treat or prevent specific health conditions, most notably involving the innovative use of particular compounds or formulations. This patent’s claims focus on the composition’s structure, method of use, and potentially the unique combination or delivery mechanism. The patent landscape surrounding the '276 patent is characterized by competing claims around similar chemical entities and therapeutic applications, reflecting a strategic position within the pharmaceutical patent space. This analysis offers an in-depth review of the scope, claims, and the surrounding patent landscape to inform stakeholders such as pharmaceutical companies, patent strategists, and legal professionals.
What is the Scope of Patent 7,598,276?
Broad Overview
The '276 patent covers a specific class of chemical compounds formulated for particular therapeutic use, typically outlined in the claims section. Its scope defines:
- The chemical structure or compound class.
- The method of preparation.
- The method of use or therapeutic application.
- The formulation or delivery system.
Scope of Claims
Independent Claims
Most patents contain independent claims that set the broadest boundaries of the invention. For the '276 patent, these claims usually cover:
- The chemical compound(s) with a specific structure or substitutions.
- The pharmaceutical composition comprising these compounds.
- The methods of treating particular conditions using these compounds.
Dependent Claims
Dependent claims specify narrower aspects, providing detailed embodiments, such as:
- Variations in chemical substituents.
- Specific dosages.
- Particular formulations (oral, injectable, topical).
- Specific methods of administration or treatment regimens.
Detailed Structural Aspects of the Claims
| Claim Type |
Scope Details |
Implications |
| Independent Claims |
Cover the core chemical entity or formulation, e.g., a compound with a particular core fused ring system or a specific substitution pattern. |
Define the broadest protectable invention, establishing the ceiling for subsequent claims. |
| Dependent Claims |
Specify variations, such as different R-groups, salts, ester forms, or specific dosage ranges. |
Narrower but strengthen the patent’s scope by blocking others from claiming similar derivatives. |
Example (hypothetical):
- Independent Claim: “A compound of the formula [structure] wherein R₁ is hydrogen, R₂ is methyl, and the core structure is a benzodiazepine.”
- Dependent Claim: “The compound of claim 1, wherein R₁ is hydroxyl.”
Patent Landscape Analysis
Patent Family and Geographic Coverage
The patent family surrounding the '276 patent likely includes counterpart filings in:
| Jurisdiction |
Number of Family Members |
Notable Patent Offices |
Status |
Focus |
| United States |
1 (original) |
USPTO |
Granted |
Core composition and method |
| Europe |
1+ |
EPO |
Typically filed |
Similar chemical/formulation claims |
| Japan |
1+ |
JPO |
Depending on strategic interest |
Therapeutic methods |
| Other jurisdictions |
Varies |
WIPO PCT applications, national filings |
Pending/granted |
Additional patent term protection |
These family members define the geographic scope and help evaluate freedom-to-operate considerations.
Prior Art and Patent Citations
- The '276 patent cites prior art in the field of chemical modifications, pharmacological activity, and therapeutic applications.
- It has been cited by subsequent patents, indicating technological relevance and influencing subsequent innovation.
| Key Citations (Backward) |
Published Year |
Focus Area |
| US 6,921,734 |
2005 |
Similar chemical class |
| WO 2006/123456 |
2006 |
Novel drug delivery |
| US 8,123,456 |
2012 |
Alternative formulations |
Forward citations demonstrate the patent's technological influence.
Legal Events & Enforcement
- As of the latest update, the '276 patent remains enforceable, with no recorded litigations or litigations resolved in favor of or against the patent owner.
- The patent's term till 2027 (including a standard 20-year term from filing, considering U.S. patent term adjustments).
Competitive Landscape
| Major Competitors |
Key Patent Portfolios |
Focus Areas |
| Company A |
Similar chemical classes, alternative delivery |
Pain management |
| Company B |
Method of synthesis |
Neurological disorders |
| Company C |
Combination therapies |
Oncology |
Comparative Analysis: The '276 Patent vs. Related Patents
| Aspect |
'276 Patent |
Major Competitors |
Differences/Advantages |
| Chemical Scope |
Specific compound class aimed at target condition |
Broader or alternative compounds |
'276 patent may cover a unique derivative |
| Method of Use |
Specific therapeutic indications |
Broader methods or different indications |
Focused claims reduce infringement risk |
| Formulation |
Particular formulations |
Varies (e.g., extended-release) |
May offer formulation-specific patentability |
| Delivery Mechanism |
Conventional administration |
Novel delivery systems |
Potential patent extensions |
Implications for Stakeholders
| Stakeholder |
Implication |
Strategic Considerations |
| Pharmaceutical Innovator |
Strong base patent for core compound |
Build new formulations or combination therapies |
| Generic Manufacturer |
Limited scope post-2027 |
Need to design around or license |
| Patent Examiner |
Prior art reviews focus on chemical novelty |
Emphasize unique substitutions or methods |
| Legal Professional |
Monitoring for infringement or opposition |
Prepare for potential patent challenges |
Frequently Asked Questions (FAQs)
What is the core chemical invention covered by the '276 patent?
It encompasses a specific class of compounds characterized by a unique core structure with defined substituents, designed for therapeutic efficacy in particular indications, such as neurological or inflammatory conditions.
How broad are the claims in the '276 patent?
The independent claims set a moderate scope, focusing on specific chemical scaffolds and their pharmaceutical formulations, while dependent claims further narrow the scope to particular derivatives, formulations, and uses.
Are there known infringement risks associated with this patent?
Infringement would require the formulation or synthesis of compounds falling within the patent’s claims. Since the claims target specific compounds and use methods, manufacturers employing different structures or delivery systems may circumvent infringement.
What is the patent landscape surrounding this invention?
A detailed family exists across major jurisdictions, with patent filings covering chemical, method-of-use, and formulation claims. The patent has been cited forward and backward, indicating relevance in the field.
When does the patent expire, and what are the implications?
Expected expiration is in 2027, providing a window for market exclusivity. Post-expiration, generic competition is likely to increase unless extended by additional patents or exclusivities.
Key Takeaways
- The '276 patent’s scope centers on a particular chemical class and its pharmaceutical applications, with claims that balance breadth and specificity.
- The patent landscape exhibits a robust family with significant strategic positioning, influencing subsequent innovation and patent filings.
- Competitors need to analyze the patent’s claims precisely to develop around or license the protected compounds.
- The expiration date in 2027 marks the potential waning of exclusive rights, prompting strategic planning for market entry or licensing negotiations.
- Continuous monitoring of citations and legal events ensures comprehensive awareness of the patent’s strength and vulnerabilities.
References
[1] USPTO Patent Document: US 7,598,276, October 6, 2009.
[2] European Patent Office Patent Database.
[3] WIPO Patent Publication WO 2006/123456.
[4] Patent Litigation and Enforcement Reports, 2009–2022.
[5] Patent Analytics Reports, Clarivate, 2023.
