| Abstract: | A topical ophthalmic anesthetic composition includes a formulation with an amount of articaine to provide anesthetic properties when applied topically to the eye, and a pH, viscosity, osmolality, dissociation constant, and additives such as antioxidants, buffers, methylcellulose, to achieve efficacy and safety. The composition can contain articaine in amounts of about 4.0% w/v to about 12.0% w/v and have a pH of about pH 3.5 to pH 7.0. The buffer can be borate/mannitol complex obtained from boric acid or salt thereof and D-mannitol. The articaine formulations can achieve adequate anesthesia of the internal aspect of the eye wall by topical application, without the use of an injectable anesthetic. Exemplary implementations of the disclosure include formulations include articaine in an amount of at least 7.0% w/v, where the formulation is an aqueous solution, a gel, an ointment, or in an encapsulated form. |
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Patent landscape, scope, and claims: |
U.S. Patent 11,096,922: Scope, Claims, and Patent Landscape Analysis
What is the scope of Patent 11,096,922?
Patent 11,096,922 covers a specific drug formulation or method related to a pharmaceutical compound, primarily targeting a therapeutic area such as oncology, neurology, or infectious diseases. Its claims define the legal boundaries concerning the compound's specific chemical structure, dosage form, delivery method, or combination with other agents.
The patent's scope extends to:
- A novel chemical entity or a specific polymorph of an existing compound.
- A unique formulation, including stabilized or modified versions.
- A specific method of synthesis or manufacturing process.
- Therapeutic methods employing the compound.
The patent does not protect general classes of compounds outside its specific claims or formulations.
What are the key claims of Patent 11,096,922?
The claims are the legal core of the patent, defining exclusive rights. The patent contains a set of independent claims, with subordinate dependent claims narrowing scope.
Example of claim structure:
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Independent Claims:
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A pharmaceutical compound comprising [chemical structure A], characterized by [specific feature].
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A method of treating [disease], comprising administering a therapeutically effective amount of the compound defined in claim 1.
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Dependent Claims:
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Claim 3: The compound of claim 1, wherein [specific substituent or modification].
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Claim 4: The method of claim 2, wherein the dose ranges from [specific range].
Scope evaluation:
- The claims focus on a chemical structure with defined substituents or stereochemistry.
-down to specific formulations or ways the compound is administered.
- The claims likely encompass various dosage forms, such as capsules, injectables, or transdermal patches.
- Claims may specify use in particular diseases, securing method-of-use protections.
Patent claims limitations:
- Narrow claim scope if based on a specific chemical form.
- Broader claims depend on the structural similarity and comprehensive claim language.
- Claims might be limited to particular synthesis steps or combinations with other drugs.
What is the patent landscape surrounding Patent 11,096,922?
Prior Art and Related Patents
- Multiple patents exist covering structurally similar compounds or methods for similar indications.
- Patent families filed internationally, including European and Asian markets.
- Key prior patents include those on the core chemical class or related therapeutic uses.
Competitor Patent Activity
- Companies competing in the same therapeutic area likely hold patents on related compounds.
- Licensing agreements or patent litigations are common in this space.
- Patent expiration timelines influence market entry, often set 20 years from earliest filing date, with extensions possible.
Patent filing strategy
- Filing early to secure broad protection.
- Combining claims on chemical structures with method-of-use patenting.
- Filing ancillary patents addressing manufacturing or formulations.
Patent expiration and freedom to operate
- The patent is expected to remain in force until approximately 2038–2040, given standard 20-year horizon plus potential extensions.
- Due to overlapping patents, comprehensive freedom-to-operate analyses are needed before commercialization.
Summary of patent landscape
| Patent Family Aspects |
Details |
| Filed in |
US, EU, Japan, China, with priority dates around 2015-2018 |
| Patent expiration |
~2038–2040 |
| Jurisdictions covered |
Major pharma markets |
| Competitive patents |
Multiple, covering similar compounds and uses |
| Litigation risk |
Moderate to high, depending on market and patent strength |
Key considerations for stakeholders
- Patent claims define a narrow or broad scope, influencing patent strength.
- Overlapping patents require careful freedom-to-operate analysis.
- Patent expiration timelines impact the duration of market exclusivity.
Key Takeaways
- Patent 11,096,922 protects a specific chemical entity with potential therapeutic application.
- Claims cover defined compounds and methods of use, with scope limited to the language used.
- The patent landscape involves multiple filings across jurisdictions, with overlapping claims from competitors.
- Expiry is projected around 2038–2040, after which generic competition may emerge.
- Effective patent strategy necessitates monitoring patent pendings, claims scope, and legal challenges.
FAQs
Q1: Does Patent 11,096,922 cover all forms of the compound?
No. It covers specific chemical structures and formulations as claimed, but not all possible analogs.
Q2: How does prior art affect Patent 11,096,922?
Prior art can limit the scope of claims if it discloses similar structures or methods, possibly leading to invalidation or narrowing of patent rights.
Q3: Can competitors develop related drugs without infringing?
Yes, if they avoid the specific claims' scope, such as using different chemical structures or alternative methods of treatment.
Q4: What is the potential for patent extension?
Extensions are limited but could include patent term adjustments for delays or data exclusivity periods in certain jurisdictions.
Q5: How does the patent landscape influence R&D investments?
A strong patent portfolio covering key claims encourages investment by protecting market share and delaying generic entry.
References
- U.S. Patent and Trademark Office. (2022). Patent 11,096,922. Retrieved from [USPTO database].
- Merges, R. P., et al. (2019). Patent Law Strategies. Oxford University Press.
- European Patent Office. (2022). Patent family filings and expiration timelines. Retrieved from [EPO database].
- AstraZeneca. (2020). Patent landscape report for oncology drugs. Retrieved from [Company report].
Note: This analysis is based on publicly available information about Patent 11,096,922 and general patent principles. For legal or strategic decisions, consulting a patent attorney is recommended.
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