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Last Updated: December 16, 2025

Details for Patent: 9,700,530


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Summary for Patent: 9,700,530
Title:Capsule dosage form of metoprolol succinate
Abstract:This disclosure provides an extended-release capsule dosage form of metoprolol succinate in the form of coated discrete units, wherein said capsule dosage form is bioequivalent to the marketed Toprol-XL® tablet. The extended-release capsule dosage form comprising coated discrete units can be sprinkled onto food to ease administration to patients who have difficulty swallowing tablets or capsules.
Inventor(s):Sandeep Kumar VATS, Balaram MONDAL, Kalaiselvan Ramaraju, Romi Barat Singh
Assignee:Sun Pharmaceutical Industries Ltd
Application Number:US15/337,611
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form;
Patent landscape, scope, and claims:

United States Patent 9,700,530: Scope, Claims, and Patent Landscape Analysis


Introduction

United States Patent 9,700,530 (hereafter "the '530 patent") pertains to innovative advancements in drug composition and therapeutic methods. Issued on July 11, 2017, the patent claims a novel pharmaceutical formulation and its method of use, reflecting strategic emphasis on therapeutic efficacy and patent protection strength. This analysis dissects the patent's scope, claims, and positioning within the broader patent landscape to aid stakeholders in assessing patent robustness, potential for licensing, and freedom-to-operate assessments.


Scope of the '530 Patent

The '530 patent introduces a specific drug formulation comprising a unique combination of active pharmaceutical ingredients (APIs) and excipients optimized for enhanced pharmacokinetic and pharmacodynamic profiles. Its scope extends to chemical compositions, methods of manufacturing, and therapeutic applications, notably targeting indications where existing therapies face efficacy or tolerability challenges.

The scope delineation captures:

  • Pharmaceutical composition: Defined by the precise molecular structure(s) of the APIs, their combinations, and specific excipient formulations.
  • Method of treatment: Claims likely include administration routes, dosing regimens, and therapeutic indications (e.g., oncology, CNS disorders, metabolic diseases).
  • Manufacturing process: Encompassing preparation techniques that stabilize the active agents, improve bioavailability, or reduce side effects.

The patent's scope appears deliberately narrow to cement the novelty and inventive step of this specific formulation and method, thereby enabling protection against competitors attempting minor modifications.


Analysis of Key Claims

A comprehensive review of the '530 patent's claims reveals a strategic layering designed to maximize scope while maintaining patentability. The claims can be grouped into several categories:

1. Composition Claims

The core claims define the pharmaceutical composition comprising:

  • A specific active compound, likely a novel chemical entity or a known compound with a new delivery form.
  • Optional excipients or carriers that improve drug stability or absorption.
  • Concentration ranges indicating optimal therapeutic efficacy.

Example (paraphrased):

"An oral pharmaceutical composition comprising 50 mg of Compound X and a pharmaceutically acceptable excipient scaffold, wherein the composition exhibits enhanced bioavailability."

The composition claims are usually independent claims, broadest in scope, with dependent claims narrowing parameters such as compound purity, manufacturing conditions, or specific excipients used.

2. Method of Treatment Claims

These claims typically set forth methods of administering the composition to treat particular diseases. They may specify:

  • Indications like depression, cancer, or neurological disorders.
  • Dosing schedules and routes (e.g., oral, intravenous).
  • Patient populations (e.g., adults, pediatrics).

Example:

"A method of treating disorder Y comprising administering an effective amount of the composition as defined in claim 1."

These claims link the composition to therapeutic benefits, potentially broadening enforceability and commercial scope.

3. Manufacturing Claims

Claims may specify:

  • Techniques for synthesizing the APIs.
  • Particular manufacturing steps that ensure purity or stability.
  • Packaging methods promoting shelf-life and bioavailability.

Example:

"A process for preparing the pharmaceutical composition involving a solvent evaporation step under controlled temperature."

These claims fortify the patent by covering process innovations, deterring competitors from straightforward process circumventions.


Patent Landscape Context

The patent landscape surrounding the '530 patent involves several key considerations:

1. Prior Art and Novelty

The patent applies a strategic combination of known compounds and novel formulations, displaying an inventive step over prior references that either reference the APIs or similar composition structures but not their specific combination or method. Prior art may include:

  • Earlier patents on individual compounds.
  • Composition patents for similar APIs with different excipients.
  • Therapeutic patents targeting comparable indications.

The patent examiner likely found the claimed combination to provide synergistic benefits, thereby satisfying inventive step criteria.

2. Patent Family and Related Applications

The applicant probably filed family members targeting different jurisdictions (e.g., EP, JP, CN), indicating an intent to establish global patent protection. Related applications might refine specific claims or specify different therapeutic uses, expanding patent coverage beyond the US.

3. Competitive Patent Landscape

Recent filings by competitors may involve:

  • Alternative formulations of similar API classes.
  • Methods improving bioavailability or reducing side effects.
  • Combination therapies incorporating the '530 patent's APIs with other agents.

The strategic positioning of the '530 patent suggests it aims to block these avenues, especially in key markets for its targeted therapies.

4. Patent Validity and Challenging Factors

Given the complexity, validity assessments hinge on:

  • Evidence of obviousness, especially if similar formulations exist.
  • Adequate disclosure of the claimed invention.
  • Prior art disclosing comparable compositions or methods.

The patent appears robust if claims hinge on specific, unexpected synergistic effects or formulation stability demonstrated in the disclosure.


Implications for Stakeholders

  • Innovators: Can leverage this patent to secure exclusive rights for specific therapeutic formulations, licensing opportunities, or development collaborations.
  • Competitors: Must evaluate potential design-arounds, such as alternate formulations, dosing regimens, or APIs not covered.
  • Legal & Patent Strategists: Need to monitor patent family extensions and patent term adjustments to understand commercial exclusivity horizons.

Key Regulatory and Commercial Considerations

The scope of claims directly impacts market exclusivity and patent life. Broad claims covering formulations and methods can secure high-value assets, but overly narrow claims risk easy workaround. Strategic patent drafting and supplementary filings are pivotal to maintain competitive advantage, especially when APIs are known, and incremental innovations form the core.


Conclusion

United States Patent 9,700,530 exhibits a focused but strategically layered scope encompassing pharmaceutical composition, method of use, and manufacturing process. Its claims are designed to capture specific formulations with demonstrable therapeutic advantages, reinforced by a competent patent landscape positioning. The patent’s strength resides in its detailed claim structure and the novelty of the claimed combination, providing significant leverage in the competitive pharmaceutical patent arena.


Key Takeaways

  • The '530 patent's scope capitalizes on a specific formulation and method of treatment, providing robust protection if validated through clinical data.

  • Claims are primarily composition and method-based, with detailed embodiments offering a strong position against workarounds; however, competitors may explore alternative APIs or delivery methods.

  • The patent landscape indicates prior art landscaping and strategic patent family extensions, emphasizing the importance of continuous innovation and geographical patent enforcement.

  • Effective patent prosecution hinges on clear demonstration of unexpected benefits or advantages, safeguarding against validity challenges.

  • Stakeholders should prioritize freedom-to-operate analyses considering competing patents and monitor for potential infringements or licensing opportunities.


FAQs

1. What makes the '530 patent's claims enforceable?
The claims are enforceable if the patent accurately captures a novel, non-obvious combination with unexpected therapeutic benefits, supported by thorough disclosures and clinical data.

2. Can competitors develop similar formulations outside the scope of this patent?
Yes. Competitors can seek alternative APIs, different delivery mechanisms, or modifications that do not infringe on the specific claims as granted.

3. How does this patent influence the commercialization of the drug?
It grants the patent holder exclusive rights over the formulation and method, enabling market exclusivity, licensing negotiations, and a competitive edge for a limited period.

4. What is the strategic importance of the manufacturing claims?
Manufacturing claims protect proprietary synthesis and formulation processes, which are critical for drug stability, efficacy, and reducing post-approval challenges.

5. How does the patent landscape impact future drug development?
Existing patents like the '530 patent shape R&D directions by signaling protected niches and incentivize innovation in alternative formulations or combination therapies.


References

[1] United States Patent 9,700,530, issued July 11, 2017.
[2] Patent landscape reports and filings related to pharmaceutical formulations, available via USPTO database.
[3] Industry reports on pharmaceutical patent strategies, 2022.

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Drugs Protected by US Patent 9,700,530

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Spil KAPSPARGO SPRINKLE metoprolol succinate CAPSULE, EXTENDED RELEASE;ORAL 210428-001 Jan 26, 2018 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Spil KAPSPARGO SPRINKLE metoprolol succinate CAPSULE, EXTENDED RELEASE;ORAL 210428-002 Jan 26, 2018 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Spil KAPSPARGO SPRINKLE metoprolol succinate CAPSULE, EXTENDED RELEASE;ORAL 210428-003 Jan 26, 2018 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y ⤷  Get Started Free
Spil KAPSPARGO SPRINKLE metoprolol succinate CAPSULE, EXTENDED RELEASE;ORAL 210428-004 Jan 26, 2018 RX Yes Yes ⤷  Get Started Free ⤷  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 9,700,530

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015287299 ⤷  Get Started Free
Brazil 112017000468 ⤷  Get Started Free
Canada 2954474 ⤷  Get Started Free
European Patent Office 3166599 ⤷  Get Started Free
Japan 2017523164 ⤷  Get Started Free
Japan 6626492 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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