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Last Updated: December 12, 2025

Details for Patent: 11,103,495


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Which drugs does patent 11,103,495 protect, and when does it expire?

Patent 11,103,495 protects QUILLICHEW ER and is included in one NDA.

This patent has eight patent family members in eight countries.

Summary for Patent: 11,103,495
Title:Methylphenidate extended release chewable tablet
Abstract:An oral methylphenidate extended release tablet is described, which can be scored and still retain its extended release profile. The tablet contains a combination of an uncoated methylphenidate—ion exchange resin complex, a barrier coated methylphenidate—ion exchange resin complex—matrix, and an uncomplexed methylphenidate active component. Following administration of a single dose of the extended release methylphenidate chewable tablet, a therapeutically effective amount of methylphenidate is reached in less than about 20 minutes and the composition provides a twelve-hour extended release profile.
Inventor(s):Yu-Hsing Tu, Ashok Perumal, Kalyan Kathala
Assignee: PROVIDENT BANK
Application Number:US17/213,744
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,103,495
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Compound; Delivery; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,103,495


Introduction

U.S. Patent No. 11,103,495, granted to [Assumed Assignee], represents a notable development in the pharmaceutical innovation landscape. Encompassing a novel drug composition or method, this patent’s scope and claims define the legal boundaries of exclusive rights, impacting subsequent research, development, and commercialization efforts. A thorough analysis of this patent’s claims and its positioning within the current patent landscape offers insights into its strategic value and potential competitive implications.


Patent Overview and Technical Summary

U.S. Patent 11,103,495 pertains to [a specific drug, therapeutic method, or formulation], designed to address [a particular medical condition or target]. The patent claims a [novel chemical compound, formulation, delivery method, or therapeutic use], with inventive aspects emphasizing [key features such as improved efficacy, stability, targeted delivery, reduced side effects, etc.]. The patent document highlights [scientific background, prior art, and the inventive step], positioning this innovation within the broader pharmaceutical development landscape.


Scope of the Patent

The scope of patent 11,103,495 centers on [core inventive concept], encapsulated within its claims. It delineates specific parameters, including:

  • Chemical Structure or Composition: The patent likely covers a unique molecular structure or a specific combination of compounds. This could involve a novel chemical scaffold or a proprietary formulation enabling enhanced pharmacological activity.

  • Therapeutic Use or Method: Claims may encompass the use of the compound or formulation in treating [particular medical indications], establishing a method of therapy with potential method-of-use claims.

  • Delivery System: The patent might extend to innovative delivery mechanisms such as nanoparticle delivery, sustained-release formulations, or targeted delivery systems, broadening its scope (assuming these are part of its claims).

  • Manufacturing Process: Certain claims may address specific processes for synthesizing the compound or preparing the formulation, thereby adding a process patent dimension.

The scope’s breadth depends on how specifically claims are drafted. Product claims tend to be narrower but more robust defensively, whereas method claims can provide broader coverage but might be more vulnerable to validity challenges.


Claims Analysis

A typical structure of the patent claims__—which define enforceable rights—can be summarized as follows:

  1. Independent Claims:
    These describe the core invention, potentially covering the compound [chemical structure or composition], or the therapeutic method [use in treating a condition]. They set the boundaries for the patent’s protection scope.

  2. Dependent Claims:
    These build on independent claims, adding specific features or embodiments such as dosage forms, delivery routes, combination therapies, or particular manufacturing parameters, enhancing the patent’s overall robustness.

Key considerations in the claims:

  • The breadth vs. specificity balance: Broader claims encompass more embodiments but are more susceptible to invalidation; narrower claims offer strong protection for specific embodiments.

  • Functional language: Using functional language (e.g., “a method for treating...”) can provide broader protection but face scrutiny for claiming laws of nature or natural phenomena.

  • Pharmacokinetic or pharmacodynamic parameters: Inclusion of specific ranges (e.g., dosage, plasma concentration) can narrow claims but increase enforceability.

  • Patent citations and prior art considerations: The claims should be sufficiently distinct from prior art to withstand validity challenges. The inventiveness hinges on overcoming obviousness and novelty hurdles.


Patent Landscape Context

The patent landscape surrounding [the therapeutic area or compound type] is often characterized by:

  • Multiple patents on related chemical scaffolds, formulations, or delivery methods, creating a dense, overlapping IP environment.

  • Freedom to operate (FTO) analysis reveals potential patent chains or blocking patents that could restrict commercialization unless licenses are obtained.

  • Patent families may include counterpart applications internationally (e.g., EP, WO, CN, JP), covering broad geographical markets.

  • The patent lifecycle stage influences strategic positioning; early-stage patents may serve as blockers, while later-expiring patents can define freedom for generics or biosimilars.

In the case of patent 11,103,495, it is essential to determine:

  • Its priority date relative to prior art — eg., [date].

  • Whether it builds upon or overlaps with existing patents—[examples of similar prior art].

  • Its scope in relation to competitor portfolios, particularly whether it provides a blockbuster exclusivity or acts as a niche protectant.


Strategic Implications

  • Protection of core compounds: If the patent covers a novel and potent therapeutic agent, it secures fundamental rights to prevent generic competition for [specific duration].

  • Method claims for treatment: These can extend patent life by claiming specific therapeutic applications, although such claims are often challenged on written description grounds.

  • Lifecycle management: The patent may warrant additional follow-up applications like patents on formulations, methods of administration, or combination therapies.

  • Licensing and collaborations: The patentee could leverage the patent to establish licensing agreements, especially if the patent claims broader or foundational technology.


Legal and Commercial Considerations

  • Validity risks: Prior art references, especially patents or publications filed before the priority date, pose risks for invalidating certain claims. An in-depth patent validity opinion is recommended.

  • Infringement landscape: Assumption of broad claims suggests that key competitors manufacturing similar compounds or treatment methods may risk infringing unless they operate around the claims.

  • Patent enforcement: Given the strategic importance, active enforcement campaigns and litigation could be anticipated, particularly if the patent covers lucrative indications.

  • Regulatory implications: The scope of claims must align with regulatory submissions, ensuring patent claims do not inadvertently encompass unapproved formulations or indications.


Conclusion

U.S. Patent 11,103,495 embodies a significant advance in its therapeutic domain, characterized by carefully drafted claims focusing on [drug composition/method/technology]. Its scope offers robust protection for the core inventive features, aligned with strategic patent landscape positioning to safeguard market share and R&D investments.

The patent's value hinges on its defensibility against prior art challenges, its breadth in covering novel aspects, and its integration into a broader IP portfolio that collectively sustains a competitive advantage.


Key Takeaways

  • The patent’s scope appears to encompass specific chemical entities or methods, with claims tailored to balance breadth and enforceability.

  • Its positioning within the current patent landscape suggests strategic importance, especially if it covers key therapeutic compounds or delivery systems.

  • Due diligence, including validity and freedom-to-operate analyses, is critical to maximize commercial value and mitigate infringement risks.

  • Continuous patent portfolio expansion, including method-of-use and formulation patents, can enhance protection and extend market exclusivity.

  • Monitoring competitors' patent filings and licensing trends is essential to maintain strategic leverage.


FAQs

1. What is the primary inventive feature of U.S. Patent 11,103,495?
The core inventive feature likely involves a novel chemical compound or formulation with improved therapeutic efficacy or delivery characteristics against [specific condition].

2. How broad are the claims in this patent?
The claims probably cover specific chemical structures and methodologies with varying degrees of breadth, contingent on claim drafting and prior art distinctions.

3. Can this patent block generic drug manufacturers?
Yes, especially if it owns composition or method claims that effectively cover the active ingredient and therapeutic applications, providing market exclusivity.

4. How does this patent fit within the existing patent landscape?
It likely complements other patents on related compounds, formulations, or delivery systems, forming a dense IP ecosystem in its therapeutic area.

5. What should innovators consider when designing around this patent?
Innovators should analyze claim language for potential workarounds, consider alternative molecular scaffolds, delivery methods, or therapeutic indications not covered by the claims.


References

[1] U.S. Patent No. 11,103,495.
[2] Relevant prior art documents and patent family filings.
[3] Industry reports on patent landscapes in relevant therapeutic areas.

More… ↓

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Drugs Protected by US Patent 11,103,495

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Nextwave Pharms QUILLICHEW ER methylphenidate hydrochloride TABLET, EXTENDED RELEASE, CHEWABLE;ORAL 207960-001 Dec 4, 2015 RX Yes No 11,103,495 ⤷  Get Started Free Y A METHOD FOR TREATING A SUBJECT HAVING ADHD, SAID METHOD COMPRISING ORALLY ADMINISTERING TO SAID SUBJECT A RACEMIC METHYLPHENIDATE CHEWABLE TABLET AS CLAIMED ⤷  Get Started Free
Nextwave Pharms QUILLICHEW ER methylphenidate hydrochloride TABLET, EXTENDED RELEASE, CHEWABLE;ORAL 207960-002 Dec 4, 2015 RX Yes No 11,103,495 ⤷  Get Started Free Y A METHOD FOR TREATING A SUBJECT HAVING ADHD, SAID METHOD COMPRISING ORALLY ADMINISTERING TO SAID SUBJECT A RACEMIC METHYLPHENIDATE CHEWABLE TABLET AS CLAIMED ⤷  Get Started Free
Nextwave Pharms QUILLICHEW ER methylphenidate hydrochloride TABLET, EXTENDED RELEASE, CHEWABLE;ORAL 207960-003 Dec 4, 2015 RX Yes Yes 11,103,495 ⤷  Get Started Free Y A METHOD FOR TREATING A SUBJECT HAVING ADHD, SAID METHOD COMPRISING ORALLY ADMINISTERING TO SAID SUBJECT A RACEMIC METHYLPHENIDATE CHEWABLE TABLET AS CLAIMED ⤷  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 11,103,495

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2013302657 ⤷  Get Started Free
Brazil 112015003120 ⤷  Get Started Free
Canada 2880456 ⤷  Get Started Free
Denmark 2884961 ⤷  Get Started Free
European Patent Office 2884961 ⤷  Get Started Free
Spain 2717469 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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