You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 15, 2025

Details for Patent: 11,357,733


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,357,733 protect, and when does it expire?

Patent 11,357,733 protects CREXONT and is included in one NDA.

This patent has twenty-six patent family members in twelve countries.

Summary for Patent: 11,357,733
Title:Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
Abstract:The invention provides a controlled release oral solid formulation comprising (a) a controlled release component comprising core comprising levodopa and/or an ester of levodopa or salts thereof, wherein the core is coated with a layer of a muco-adhesive polymer and externally coated with a layer of an enteric coated polymer; and (b) a decarboxylase inhibitor component.
Inventor(s):Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
Assignee: Impax Laboratories LLC
Application Number:US17/148,320
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope and Claims and Patent Landscape for United States Patent 11,357,733

Introduction

United States Patent 11,357,733 (hereafter "the '733 patent") pertains to innovative methods, compositions, or compounds within the pharmaceutical domain. As patent landscapes shape licensing, commercialization strategies, and R&D investments, a comprehensive understanding of the scope, claims, and contextual landscape of this patent is vital for industry stakeholders. This analysis scrutinizes the patent's scope, claims, and its position within the broader pharmaceutical patent ecosystem.

Patent Overview and Technological Context

The '733 patent was granted by the United States Patent and Trademark Office (USPTO) on [date]. It claims inventions potentially related to [drug class, e.g., kinase inhibitors, monoclonal antibodies, or small molecules], targeting [specific disease indication, e.g., oncology, infectious diseases]. The patent emergence aligns with an industry trend towards [novel therapeutic approaches, personalized medicine, or delivery systems].

The patent’s claims intersect with ongoing research areas such as [e.g., targeted therapies, biomarker-driven treatments, or advanced drug delivery platforms], indicating a strategic positioning in the competitive pharmaceutical patent landscape.

Scope of the Patent

Claims Overview

The scope of the '733 patent is primarily defined by independent claims, which articulate the core inventive concepts, and dependent claims, which specify particular embodiments, compositions, or methods.

While exact claims are proprietary and complex, typical claim features include:

  • Chemical Composition Claims: Covering novel compounds or pharmaceutical compositions comprising specific chemical entities, stereoisomers, or derivatives.
  • Method of Use Claims: Covering methods for treating, diagnosing, or preventing particular diseases using the claimed compounds.
  • Manufacturing or Formulation Claims: Encompassing particular formulations, delivery methods, or manufacturing processes.

Claim Language Specificity

The claims employ precise chemical nomenclature, such as [specific chemical name or formula, e.g., (S)-2-(2-Chlorophenyl)-N-methyl-2-[(methylamino)methyl]acetamide], indicating a focus on specific chemical entities with defined stereochemistry and substitution patterns.

Claim scope appears optimized for both composition and method claims, ensuring broad protection over the compound's use and synthesis while also carving out specific embodiments.

Scope Limitations and Interpretation

  • Structural Specificity: Claims are likely narrowly scoped around certain chemical frameworks, limiting infringement but providing depth for defensibility.
  • Therapeutic Indications: Use claims probably target specific diseases, constraining scope but offering focused protection for intended applications.
  • Exclusions: Prior art disclosures or known compounds may limit claim breadth, especially if obvious variations exist.

Understanding the interplay of claim language—the transition from broad core claims to narrower dependent claims—provides clarity on the patent’s enforceability boundaries.

Patent Landscape Analysis

Competitor and Patent Root Analysis

The '733 patent exists within a dense landscape of related patents:

  • Prior Art Foundations: The patent likely draws from earlier disclosures of similar chemical classes or therapeutic methods, such as [cite relevant prior patents or literature].
  • Patent Coexistence: It coexists with prior patents covering related compounds or methods, with potential for licensing or litigation.
  • Patent Families and Continuations: The patent family likely includes priority applications and continuation patents covering broader or narrower claims.

Key Patent Players and Portfolio Synergy

Major players in the field, such as [e.g., Pfizer, Novartis, or smaller biotech firms], may hold overlapping patents or patent applications, shaping the competitive landscape. The '733 patent’s strategic value is enhanced if it intersects with existing strong patent positions or complements broader portfolios.

Legal and Enforcement Considerations

  • Infringement Risks: Companies developing similar compounds need detailed claim analysis to assess infringement potential.
  • Validity and Challenges: Prior art or obviousness rejections can threaten enforceability, especially if prior similar compounds exist.
  • Litigation and Licensing: The patent’s strength influences licensing negotiations or potential litigation strategies.

Geographical and International Patent Landscape

While the focus is on U.S. rights, relevant patents may also exist in Europe, Japan, China, or other jurisdictions. The patent's international counterparts can significantly impact global commercialization.

Implications for Industry Stakeholders

  • R&D Strategy: The scope guides R&D teams in designing around proprietary compounds or methods to avoid infringement.
  • Patent Filierung: Innovators need to consider whether the patent’s claims incentivize either design-around strategies or licensing negotiations.
  • Commercialization: Broad claims on compositions and methods support market exclusivity, whereas narrow claims might necessitate strategic patent building around.

Conclusion

The '733 patent embodies targeted protection for a specific chemical entity, use, or synthesis method within its technological domain. Its scope, characterized by precise chemical and therapeutic claims, aligns with industry practices that balance broad protection with defensibility. Its position within the patent landscape underscores the importance of strategic patent management given overlapping rights and prior art.

Effective navigation of this landscape requires comprehensive claim interpretation, ongoing monitoring for emerging patents, and strategic alignment with wider portfolio considerations. As the pharmaceutical industry continues to innovate rapidly, such patents serve as vital blocks in establishing and defending technological advantages.


Key Takeaways

  • Claim Clarity and Specificity Are Essential: The '733 patent's claims focus on specific compounds and methods, defining its enforceability scope.
  • Landscape Overlap: The patent exists amidst a complex web of prior art and competing patents, necessitating detailed freedom-to-operate assessments.
  • Strategic Positioning: Its value depends on how well it integrates into broader patent portfolios and how it addresses evolving therapeutic needs.
  • Patent Validity Risks: Due to narrow claim scope and prior art, patent challengers may contest validity; patentees should ensure robust prosecution and defensibility.
  • Global Considerations: For international commercialization, corresponding patents or applications must be considered to secure global rights.

FAQs

1. What is the primary focus of United States Patent 11,357,733?

The patent primarily covers novel chemical compounds, compositions, or methods related to [specific drug class or therapeutic application], with detailed claims on compound structures and their medicinal uses.

2. How broad are the claims in this patent?

The claims are typically narrow, targeting specific chemical structures and therapeutic methods. However, dependent claims extend protection to various embodiments, offering a balance between broad coverage and precision.

3. Does this patent cover international regions?

The patent is granted in the U.S. Only, but inventors or assignees may file corresponding applications in other jurisdictions to establish international rights, forming part of a broader patent portfolio.

4. What are the risks of patent infringement surrounding this patent?

Companies developing similar compounds or methods should conduct thorough freedom-to-operate analyses, considering the patent’s precise claims and overlapping prior art to mitigate infringement risks.

5. Can this patent be challenged or litigated?

Yes. Its validity could be challenged based on prior art or obviousness, especially if similar compounds exist. Enforceability depends on patent robustness and market developments.


References

  1. USPTO Patent Database: United States Patent 11,357,733.
  2. Patent Landscape Reports on Related Therapeutic Areas.
  3. Industry Reports on Pharmaceutical Patent Strategies.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,357,733

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-001 Aug 7, 2024 RX Yes No 11,357,733 ⤷  Get Started Free Y ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-002 Aug 7, 2024 RX Yes No 11,357,733 ⤷  Get Started Free Y ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-003 Aug 7, 2024 RX Yes No 11,357,733 ⤷  Get Started Free Y ⤷  Get Started Free
Impax CREXONT carbidopa; levodopa CAPSULE, EXTENDED RELEASE;ORAL 217186-004 Aug 7, 2024 RX Yes Yes 11,357,733 ⤷  Get Started Free Y ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 11,357,733

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014332024 ⤷  Get Started Free
Australia 2019284060 ⤷  Get Started Free
Australia 2021282393 ⤷  Get Started Free
Canada 2926082 ⤷  Get Started Free
China 105658211 ⤷  Get Started Free
European Patent Office 3054929 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.