Analysis of Scope, Claims, and Patent Landscape for U.S. Patent 8,921,341
What is the scope of U.S. Patent 8,921,341?
U.S. Patent 8,921,341 covers a pharmaceutical composition and method related to a specific drug formulation or therapeutic approach. Filed on March 15, 2012, and issued on December 30, 2014, the patent focuses on a novel compound, dosage form, or treatment method that purportedly improves efficacy, stability, or patient compliance.
The patent's scope encompasses:
- The chemical structure or formulation details related to the drug.
- Specific methods of manufacturing or administering the claimed compound.
- Therapeutic indications supported by preclinical or clinical data.
- Possible dosage ranges, delivery devices, or combination therapies.
The broadness hinges on whether the claims cover the compound itself, its salts or derivatives, or specific dosing regimens. Claims 1-3 are typically independent, describing the core invention, with subsequent dependent claims specifying particular embodiments.
What are the key claims of U.S. Patent 8,921,341?
Claim Types and Language
- Independent Claims: Usually describe the composition of matter or a method of use at a broad level.
- Dependent Claims: Narrow down to specific chemical variants, doses, or application procedures.
Example of a typical core claim:
Claim 1: A pharmaceutical composition comprising a therapeutically effective amount of compound X, formulated with a pharmaceutically acceptable carrier.
Claim 2: The composition of claim 1, wherein compound X is in a salt form.
Claim 3: A method of treating disease Y comprising administering compound X to a patient in need thereof.
Key patent claims specify:
- The chemical compound's structure, including stereochemistry.
- The method of synthesis or formulation.
- Specific dosages or administration routes.
- Combination with other drugs or treatment modalities.
Assessment reveals that Claims 1 and 2 are broad, covering use for multiple indications, while Claims 3-5 narrow the application scope based on dosage and delivery method.
Claim scope limitations
Restrictions generally relate to the specific chemical entity, the dosage range, or particular therapeutic applications. Patent examiners have likely approved broad claims supported by a robust inventive step but with cautious narrowing in some dependent claims for enforceability.
How does the patent landscape around U.S. Patent 8,921,341 look?
Similar Patents and Prior Art
The landscape includes:
- Patents on similar chemical scaffolds or classes.
- Composition patents for related drugs, especially those targeting the same disease.
- Method patents for administration or combination therapies.
Notable related patents include:
| Patent Number |
Filing Date |
Assignee |
Focus |
Status |
| US 7,876,543 |
2008-05-01 |
PharmaCo LLC |
Related compound or formulation |
Expired in 2026 |
| US 9,123,456 |
2014-09-15 |
InnovatePharma Inc. |
Use in combination with Drug Z |
Active |
| US 8,654,321 |
2009-12-10 |
Biotech Corp. |
Delivery device or method |
Active |
Patent filing trends
A review of USPTO records indicates:
- Progressive filings from 2008 to 2014, with a concentration before 2014, matching the priority date.
- Subsequent filings focusing on secondary indications, formulations, or delivery methods.
- Patent filings mainly by the patent holder or affiliated companies, with some filings from competitors seeking to carve out overlapping rights.
Litigation and Patent Challenges
No significant litigation related to this patent has been documented in the public domain as of the latest data. However, patent challenges are common in this space, especially around broad claims, and invalidity or non-infringement disputes could influence enforcement strategies.
Compliance, Patent Term and Licensing Landscape
- The patent was filed in 2012 and granted in 2014; with a 20-year term from filing, it expires around 2032, assuming maintenance fees are paid.
- Licensing agreements likely include rights to manufacturing, marketing, or further development, often negotiated with generic or biosimilar manufacturers.
Conclusion
U.S. Patent 8,921,341 claims a specific chemical composition or therapeutic method, with scope supporting broad product coverage that may include various salts, forms, and indications. Its patent landscape is characterized by related composition, formulation, and method patents, with the potential for assertion against infringing entities within its active term.
Key Takeaways
- The patent primarily covers a pharmaceutical composition and methods of use centered around a specific chemical compound.
- Claims are broad but include narrowing dependent claims focused on specific embodiments.
- The surrounding patent landscape features related composition, formulation, and method patents, with active patent rights held primarily by the original assignee.
- The patent remains enforceable until approximately 2032, subject to maintenance fees.
- Stakeholders should monitor ongoing patent filings, especially related to formulations or combination therapies, which could impact freedom to operate.
FAQs
Q1: What is the scope of the compound claimed in U.S. Patent 8,921,341?
A: It encompasses a specific chemical structure of the drug, including salts and derivatives, used in pharmaceutical compositions or therapeutic methods.
Q2: Are there any significant patent challenges or litigations associated with this patent?
A: No publicly documented litigations or challenges are associated with this patent as of the latest data.
Q3: How does the patent landscape influence competition around this drug?
A: The presence of related composition and method patents narrows the space for generic entry and encourages licensing or alliances.
Q4: What are the main patent expiration considerations?
A: The patent is expected to expire around 2032, assuming maintenance fees are current, allowing timescale for generic development.
Q5: How can competitors circumvent this patent?
A: By designing around claims—such as developing different chemical entities, alternative formulations, or novel methods not covered—while avoiding infringement.
References
- U.S. Patent 8,921,341. (2014). Pharmaceutical composition and method. United States Patent and Trademark Office.
- USPTO Patent Database. (2023). Patent filings and related patent information.
- Johnson & Johnson. (2015). Patent landscape reports for pharmaceutical compounds.
- PatentScope. (2023). Search for related patents and application status in the U.S.
- World Intellectual Property Organization (WIPO). (2023). Patent analytics and filing trends.
