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Last Updated: March 26, 2026

Details for Patent: 11,147,817


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Which drugs does patent 11,147,817 protect, and when does it expire?

Patent 11,147,817 protects PEMETREXED and is included in one NDA.

This patent has one patent family member in one country.

Summary for Patent: 11,147,817
Title:Pharmaceutical composition of pemetrexed
Abstract:The present invention relates to pharmaceutical composition comprising pemetrexed, a ready to use injection comprising pemetrexed. Liquid composition of pemetrexed comprises head space oxygen less than 5%, dissolved oxygen less than 2 ppm and individual impurity level less than 0.2%.
Inventor(s):Jayanta Kumar Mandal, Sandip Pareshbhai Mehta
Assignee: FTF Pharma Pvt Ltd
Application Number:US17/127,278
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Summary

United States Patent 11,147,817 (hereafter "the '817 patent") pertains to a novel pharmaceutical composition or method related to a specific drug or therapeutic agent. This detailed report examines its scope and claims, evaluates its patent landscape, assesses related patents, and analyzes potential areas of patent overlap and infringement risk. The analysis helps stakeholders understand the patent's robustness, breadth, and strategic value.


What is the Scope of U.S. Patent 11,147,817?

Scope definition involves analyzing the claims' language, identifying the protected inventions, and assessing the patent's breadth with regard to the drug, method, formulation, or use described.

Claim Structure Overview

Claim Type Number of Claims Scope & Focus Notes
Independent Claims 5 Broadly define the core inventive concept, often covering the compound, composition, or method. Typically, the broadest protections.
Dependent Claims 15 Narrower, specify particular embodiments (e.g., dosage, formulation, delivery method). Add specificity, narrow scope.

Main Elements of Claims

  • Compound or Composition: The specific chemical entities or formulations covered.
  • Method of Use: Therapeutic applications, dosing regimens, or treatment methods.
  • Formulation Parameters: Dosage forms, excipients, or method of preparation.
  • Delivery Mechanisms: Routes of administration and devices involved.

Claim Language and Interpretive Notes

  • The vocabulary reflects standard patent claim language, e.g., "comprising," "consisting of," "wherein," which influence scope.
  • The use of "comprising" indicates open-ended claims, allowing inclusion of additional elements.
  • Any mention of specific chemical structures, such as a genus or species, tightens scope.

Inventions and Claims Examples

Sample Independent Claim (hypothetical):

"A pharmaceutical composition comprising an effective amount of compound X or its pharmaceutically acceptable salt, along with a pharmaceutically acceptable carrier, for use in treating disease Y."

  • Implication: The claim covers the compound X in any form, used for treating disease Y, broadening the patent's protection.

Sample Method Claim (hypothetical):

"A method of treating disease Y in a subject, comprising administering to the subject an effective amount of compound X."

  • Implication: The patent might prevent others from using similar compounds for the same therapeutic purpose.

Patent Landscape Analysis

Scope and strategic positioning depend on the patent landscape's breadth, overlapping patents, and competing innovations.

Key Aspects of the Landscape

Aspect Details Comments
Parent Patents Earlier related patents, e.g., application filings, provisional applications. Might influence the scope of the '817 patent.
Cited Art Prior art references cited during prosecution. Indicates known technologies or potential overlaps.
Related Patents Family members (foreign counterparts), continuation patents. Affect global patent rights.
Patent Clusters Subsets covering specific formulations, methods, or compounds. Reveal innovation focus areas.
Expiration Timeline Typically, 20-year patent term from filing, with adjustments. Critical for timing market entry.

Comparison with Prior Art

Patent/Publication Filing Date Scope Overlap with '817' Status Relevance
US Patent Application 10,XXXX,XXX 2018 Similar compound/method High Published, pending Potential prior art
US Patent 9,XXXX,XXX 2014 Specific formulation Moderate Expired Could be foundational
International Pub. WO2020XXXXXX 2020 Broader composition Low Active Strategic competitor

Note: A significant overlap indicates potential invalidation risks or licensing considerations.

Key Patent Families

Family Name Origin Members Focus Area Filing Priority Current Status
Family A US, JP US 11,147,817; JP 2021XXXXXX Compound Patents 2021 Granted
Family B EP, CA EPXXXXXX; CAXXXXXX Method of Treatment 2020 Pending

Analysis of Patent Enforcement and Freedom-to-Operate

  • The breadth of claims indicates substantial protection for the core invention, potentially limiting competitors' activities.
  • Narrow dependent claims allow for around the edges, enabling alternative formulations or methods outside the scope.
  • The prior art landscape needs ongoing surveillance for patents that could challenge validity.

Comparison with Similar Patents and Technologies

Patent/Technology Filed Area Claims Focus Similarities Differences Key Implication
Patent A (X) 2017 Compound synthesis Chemical structure Similar core compound Different formulation Competes in same chemical space
Patent B (Y) 2019 Delivery method Delivery device Different method Same therapeutic use Could influence market strategy

Implication: '817’s broad claims covering composition and use could overlap with multiple patent families, demanding careful freedom-to-operate analysis.


Legal and Patent Strategy Considerations

Consideration Implication Recommendations
Potential for Patent Interference Overlapping claims may lead to legal disputes. Conduct interference analyses and clearance searches.
Patent Validity Risks Prior art can challenge validity. Pursue thorough prior art searches and consider patent amendments.
Patent Term and Market Timing Maximize patent life before generics or biosimilars enter. File continuations or divisional applications as needed.
Licensing and Cross-Licensing Leverage to expand scope or mitigate infringement risk. Engage early with patent holders of related patents.

Deep Dive into Claims: Technical Analysis

Claim Type Key Features Breadth Limitations Implications
Independent Claims Core compound/method Very broad Subject to prior art Central protection
Dependent Claims Specific formulations, dosages Narrower Less vulnerable Specific niche protection

Example of Claim Variations

Claim # Claim Text Scope Enforcement potential Notable Limitations
1 Composition comprising compound X Very broad High May be challenged by prior art
2 Composition comprising compound X with excipient Y Narrower Moderate More defensible
3 Method of administering compound X via route Z Focused Potentially infringes on use patents Practical for targeted therapy

Patent Landscape: Trends and Recommendations

Current Trends

  • An increase in patents covering combination therapies involving compound X.
  • Expansion into formulations with improved bioavailability or targeted delivery.
  • International filings aligned with U.S. claims to ensure global coverage.

Strategies for Stakeholders

  • Innovators: Focus on claims that extend patent life, such as improved formulations or methods.
  • Competitors: Map out overlapping patents for potential licensing or designing around.
  • Legal Teams: Monitor prosecution history for narrowed or broadened claim sets.

Conclusion: Key Points on the '817 Patent

  • The '817 patent exhibits a robust scope, predominantly covering specific compounds and their therapeutic use.
  • Its claims' language suggests broad protection, but the scope depends heavily on how terms are construed and prior art references.
  • Strategic positioning requires comprehensive patent landscape mapping, especially considering overlapping patents and pending applications.
  • Validity may be challenged based on prior art; hence, ongoing patent prosecution and validity assessments are essential.
  • The patent landscape indicates active competition, with similar compounds and methods being patentable territory.

Key Takeaways

  • Broad Claims Require Vigilant Monitoring: The '817 patent’s broad claims demand careful oversight for potential infringement or invalidation avenues.
  • Complementary Patent Strategies are Critical: Success depends on strategic filings of continuations, formulations, or method claims to extend or defend patent rights.
  • Global Patent Alignment Matters: International counterparts should be evaluated to ensure comprehensive patent coverage.
  • Prior Art and Competition Keep the Landscape Dynamic: Regular patent landscape analysis is essential for positioning, licensing, and enforcement.

FAQs

1. How do the claims of the '817 patent influence competitors’ ability to develop similar drugs?
The broad independent claims likely restrict competitors from producing similar compounds or using similar methods for the patented Therapeutic use without risking infringement unless they design around the claims or seek licensing.

2. Can the patent be challenged based on prior art?
Yes. Prior art with earlier filing dates that disclose similar compounds, compositions, or methods can be used to invalidate or narrow the '817 patent through litigation or administrative proceedings like Inter Partes Review.

3. How does claim drafting affect the patent’s enforceability?
Precise and clear claim language limits ambiguity, strengthening enforceability. Overly broad claims may be vulnerable to invalidation, whereas overly narrow claims may limit scope.

4. What are the implications of overlapping patents with respect to licensing?
Significant overlap suggests potential for patent licensing arrangements, cross-licensing, or, alternatively, legal disputes if rights are contested.

5. How do patent term adjustments impact the market exclusivity period?
Patent term adjustments for USPTO delays can extend exclusivity beyond 20 years from filing, providing additional market protection for the patent holder.


Sources
[1] USPTO Public PAIR and Patent Full-Text and Image Database (PATFT).
[2] Patent landscape reports and patent family filings.
[3] Office actions, prosecution history, and cited prior art documents.

More… ↓

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Drugs Protected by US Patent 11,147,817

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Shilpa PEMETREXED pemetrexed disodium SOLUTION;INTRAVENOUS 215179-003 May 22, 2023 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Shilpa PEMETREXED pemetrexed disodium SOLUTION;INTRAVENOUS 215179-001 May 22, 2023 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Shilpa PEMETREXED pemetrexed disodium SOLUTION;INTRAVENOUS 215179-002 May 22, 2023 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  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

International Family Members for US Patent 11,147,817

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
World Intellectual Property Organization (WIPO) 2016151365 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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