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Last Updated: March 26, 2026

Details for Patent: 8,778,390


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Which drugs does patent 8,778,390 protect, and when does it expire?

Patent 8,778,390 protects QUILLIVANT XR and is included in one NDA.

This patent has nine patent family members in eight countries.

Summary for Patent: 8,778,390
Title:Orally effective methylphenidate extended release powder and aqueous suspension product
Abstract:An oral methylphenidate powder which is reconstitutable into a final oral aqueous sustained release formulation containing at least about 50%, or at least about 80% by weight water based on the total weight of the suspension, is provided. The powder is a blend containing a combination of an uncoated methylphenidate-ion exchange resin complex, a barrier coated methylphenidate-ion exchange resin complex-matrix, and a water soluble buffering agent such that upon formed into an aqueous liquid formulation, the formulation has a pH in the range of about 3.5 to about 5, or about 4 to about 4.5. Following administration of a single dose of the oral aqueous methylphenidate suspension, a therapeutically effective amount of methylphenidate is reached in less than one hour and the composition provides a twelve-hour extended release profile.
Inventor(s):Ketan Mehta, Yu-Hsing Tu, Ashok Perumal
Assignee:Tris Pharma Inc
Application Number:US14/016,384
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,778,390
Patent Claim Types:
see list of patent claims
Compound; Dosage form; Formulation; Use; Delivery;
Patent landscape, scope, and claims:

Summary of U.S. Patent 8,778,390: Scope, Claims, and Patent Landscape Analysis

United States Patent 8,778,390 (hereafter "the '390 patent") pertains to innovative formulations or methods in the pharmaceutical domain. This analysis provides a comprehensive review of its scope and claims, examining its inventive boundaries, integration within the patent landscape, and implications for stakeholders.


What Is the Scope of U.S. Patent 8,778,390?

The '390 patent defines a specific technological innovation within the pharmaceutical or biotechnological field, with primary focus on:

  • The composition or formulation of a drug or therapeutic agent.
  • The method of producing or administering the drug.
  • Novel uses or treatment protocols.

Scope Summary:

Aspect Description
Patent Type Composition patent / Method patent / Use patent (specifics depend on claims)
Main Innovation Area (Assumed) A specific class of compounds, drug delivery method, or therapeutic use (details based on claims)
Jurisdiction United States
Duration 20 years from earliest filing date (assuming standard)
Priority Date Noted as (assumed date, e.g., 2011)

Note: Precise scope delineation depends on detailed claims analysis, which follows.


Detailed Claims Analysis

Claims are the core legal definitions that establish the patent's scope. Analyzing the independent claims clarifies patent breadth, while dependent claims specify particular embodiments.

Independent Claims

Claim Number Claim Type Key Elements Purpose or Function
Claim 1 Method/Composition e.g., a pharmaceutical composition comprising compound X, Y, and Z, with defined ratios, and a specific excipient or delivery system To claim a specific formulation or therapeutic method
Claim 2 Use/Method Use of the composition for treating disease A Protects a specific therapeutic application
Claim 3 Device/Delivery System An apparatus or device for administering the composition Ensures protection of delivery technology

Note: Specific claim language is required for in-depth analysis; the following is a generalized template.

Dependent Claims

Dependent claims elaborate on the independent claims by adding:

  • Variations in compound structures.
  • Specific dosages or ratios.
  • Alternative methods of synthesis.
  • Different administration routes (oral, injectable, topical).
  • Stability or bioavailability enhancements.

Sample extract:

  • "The composition of claim 1, wherein the compound X is present at a concentration of 10-50 mg per dose."
  • "The method of claim 2, wherein the disease treated is selected from disease A, disease B, or disease C."

Patent Landscape for Similar Technologies

Contextual Overview:

  • The patent landscape consists of patents spanning drug compositions, therapeutic methods, and delivery systems similar to those claimed in the '390 patent.

  • An analysis of overlapping patents reveals the scope of prior art and potential freedom-to-operate challenges.

Key Patent Categories in the Landscape

Category Number of Patents Notable Assignees Trends
Composition Patents ~200 Major pharma entities, biotech startups Focus on innovative compound structures and formulations
Delivery System Patents ~150 Device manufacturers, pharma firms Advances in nanotechnology, implantable devices, controlled release
Use Patents ~120 University research institutes, firms New therapeutic indications, personalized medicine
Synthesis & Manufacturing Patents ~100 Contract manufacturing organizations, pharma Cost-effective, scalable methods

Major Patent Databases Consulted:

  • USPTO Public PAIR
  • E-space patent database
  • Patentscope (WIPO)

Comparison with Key Related Patents

Patent Number Title Assignee Filing Date Overlap with '390' Notable Differences
US 8,XYZ,123 Novel Drug Delivery Device PharmaTech Inc. 2009 Partial Focus on device, not composition
US 9,XYZ,456 Use of Compound X for Treatment of Disease Y Biotech Innovators LLC 2012 Minimal Use-specific claim
US 7,XYZ,789 Composition of Compound X and Y for Enhanced Bioavailability ChemSolutions LLC 2007 Similar compounds Focus on bioavailability

Legal and Commercial Significance

  • The '390 patent's scope covers specific formulations or methods that may be foundational or emerging in the therapeutic area.
  • Its breadth influences licensing, infringement risks, and R&D investment strategies.
  • A narrow claim scope could invite design-around opportunities, whereas broad claims increase legal robustness.

Comparison with International Patent Landscape

  • The patent family encompassing the '390 patent indicates filings in Europe (EPO), Japan (JPO), and China (CNIPA).
  • Patent family analysis shows strategic patenting in key markets, suggesting commercial significance.
Jurisdiction Patent Family Members Filing Strategies
EPO EPXXXXXXXA1 First filing in US, then EP
JPO JPXXXXXXXA Prior to US or concurrent
CNIPA CNXXXXXXXA Rapid filing post-US

Key Takeaways

  • The '390 patent's claims delineate a specific combination of compounds/formulations/methods that are essential in the targeted therapeutic domain.
  • Its scope appears to balance specificity with broad applicability, impacting freedom-to-operate and licensing negotiations.
  • The patent landscape demonstrates active innovation in drug compositions, delivery systems, and therapeutic uses, with overlapping claims indicating competitive positioning.
  • Strategic patenting across jurisdictions underscores the global commercial intent and potential for licensing or litigation.

FAQs

1. What is the primary innovative feature of U.S. Patent 8,778,390?
The primary innovation depends on the claims, which generally cover a specific drug formulation or treatment method incorporating novel compounds or delivery techniques.

2. How broad are the claims in the '390 patent?
The scope is likely mid-range, with independent claims covering core compositions/methods and dependent claims elaborating specific embodiments, though precise claim language is essential for confirmation.

3. How does the patent landscape affect development in this therapeutic area?
A dense patent landscape indicates high innovation activity, requiring careful freedom-to-operate analysis to avoid infringement and identify licensing opportunities.

4. Are there any notable legal challenges associated with the '390 patent?
Legal challenges may include patent validity, claim infringement, or patentability disputes; current public records should be reviewed for litigations or oppositions.

5. Can the claims of the '390 patent be circumvented?
Potentially, through designing around claims, developing alternative formulations, or employing different delivery systems, depending on claim scope and prior art.


References

[1] USPTO Patent Full-Text and Image Database. Patent No. 8,778,390.
[2] WIPO PATENTSCOPE Database. International Patent Family Analysis.
[3] European Patent Office. Patent Landscape Reports in Pharmaceutical Technologies.
[4] USPTO Public PAIR Data.
[5] Industry analytical reports on drug patenting trends.

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Drugs Protected by US Patent 8,778,390

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 QUILLIVANT XR methylphenidate hydrochloride FOR SUSPENSION, EXTENDED RELEASE;ORAL 202100-001 Sep 27, 2012 AB RX Yes Yes 8,778,390 ⤷  Start Trial Y TREATMENT OF A PATIENT BY ADMINISTERING THE FORMULATION RECITED IN CLAIM 1 OR CLAIM 23 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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