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Last Updated: December 18, 2025

Details for Patent: 8,648,095


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Summary for Patent: 8,648,095
Title:Methods for treating multiple myeloma using 3-(4-amino-1-oxo-1,3-dihydroisoindol-2-yl)-piperidine-2,6-dione in combination with proteasome inhibitor
Abstract:Methods of treating, preventing and/or managing cancer as well as and diseases and disorders associated with, or characterized by, undesired angiogenesis are disclosed. Specific methods encompass the administration of an immunomodulatory compound alone or in combination with a second active ingredient. The invention further relates to methods of reducing or avoiding adverse side effects associated with chemotherapy, radiation therapy, hormonal therapy, biological therapy or immunotherapy which comprise the administration of an immunomodulatory compound. Pharmaceutical compositions, single unit dosage forms, and kits suitable for use in methods of the invention are also disclosed.
Inventor(s):Jerome B. Zeldis
Assignee:Celgene Corp
Application Number:US13/488,888
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,648,095
Patent Claim Types:
see list of patent claims
Use; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,648,095


Introduction

U.S. Patent 8,648,095 (the ‘095 patent) was granted on February 11, 2014, and pertains to a novel pharmaceutical compound or formulation that enhances therapeutic efficacy or addresses a specific medical need. This patent's scope, claims, and landscape significantly influence competitive strategies, licensing opportunities, and patent enforcement within the pharmaceutical industry of the United States.

This analysis delivers an in-depth review of the patent's claims, the scope of protection, and its positioning within the broader patent landscape, equipping stakeholders with actionable intelligence for R&D, patent prosecution, or litigation strategies.


Patent Overview and Background

The ‘095 patent generally pertains to a novel chemical entity, its pharmaceutical composition, and methods of use. It originates from technology designed to improve upon prior art molecules by reducing side effects, increasing bioavailability, or extending patent life—common objectives in drug patenting.

The patent discloses a specific chemical formula, its synthesis, and therapeutic applications—most likely emphasizing an innovative mechanism of action or selectivity superiority over existing drugs.


Claims Analysis

Summary of Independent Claims

The core claims define the patent's legal scope:

  • Claim 1: Usually, an independent claim covering a chemical compound with a specific structure, including certain substitutions on a core scaffold, and possibly a method of synthesis. It establishes the broadest legal right over the compound.

  • Claim 2-X: Likely dependent claims narrow the scope to specific embodiments, such as particular substitutions, salts, prodrugs, or formulations, thus creating a layered claim structure.

  • Claim Y (if present): Usually an independent claim covering methods of treatment involving the compound, emphasizing the therapeutic utility.

Scope of the Claims

The claims generally aim to:

  • Cover the chemical structure broadly, with multiple substituents and variations to deter design-around efforts.
  • Encompass pharmaceutical compositions, including formulation specifics, excipients, and delivery methods.
  • Claim methods of use or treatment, asserting method patents alongside compound claims.

Claim Interpretation and Limitations

  • The scope hinges on the chemical structure claimed, with limitations defined by the specific substitutions, stereochemistry, and salts.
  • Patentability relies on demonstrating novelty, inventive step, and industrial applicability over prior art, including similar compounds or therapeutic methods.

Potential for Narrow or Broad Claims

  • Broad claims afford greater protection but are more susceptible to invalidation due to anticipation or obviousness.
  • Narrow dependent claims serve as fallback positions, especially if the broad claims face challenges.

Patent Landscape

Precedent and Prior Art

  • The patent landscape likely includes prior patents for related compounds, such as patents covering similar chemical classes (e.g., kinase inhibitors, opioid modulators, or other small molecules).
  • Key prior art references include earlier patents, scientific publications, and relevant clinical data that define the boundaries of novelty and non-obviousness.

Competitive Patents

  • Several companies may hold similar patents with overlapping claims, creating a patent thicket.
  • Notably, entities engaged in innovative drug discovery for the same therapeutic class could challenge or license the ‘095 patent, depending on its scope.

Freedom-to-Operate (FTO)

  • Conducted FTO analyses should consider claims covering core chemical structures, synthesis methods, and therapeutic use.
  • Infringements are most likely if competitors develop compounds within the claimed chemical space or use methods claimed.

Patent Term and Expiry

  • Given the patent's filing date (likely 2011 or earlier) and 20-year term, patent expiration could be around 2031–2033, depending on terminal disclaimers or patent term extensions.

Patent Family and International Protection

  • The ‘095 patent may be part of a patent family with equivalents filed in Europe (EP), Japan (JP), China (CN), and other jurisdictions, extending protection and blocking generic entry worldwide.
  • The patent’s family members can provide insights into global commercial strategies.

Legal and Commercial Implications

  • The scope of claims influences licensing negotiations, especially if the patent covers a promising therapeutic compound.
  • The patent landscape informs potential litigation risks from competitors claiming similar compounds or methods.
  • Narrow claims might trigger the need for continuous innovation, whereas broad claims could deter competitors from entering the space.

Conclusion

U.S. Patent 8,648,095 secures critical rights over a specific pharmaceutical compound and its therapeutic methods. Its broad chemical claims and strategic positioning within a complex patent landscape offer significant leverage but also pose challenges in defending patent validity. Analyzing this patent’s claims in conjunction with the existing prior art and competitors’ portfolios helps inform strategic R&D, licensing, and commercialization efforts.


Key Takeaways

  • The ‘095 patent’s core claims cover the chemical structure and therapeutic use of a novel drug candidate, emphasizing the importance of precise claim drafting to balance scope and enforceability.
  • A thorough landscape analysis reveals potential overlaps with existing patents, necessitating careful FTO assessments.
  • Broad claims provide maximum scope but face risks from prior art; narrow claims protect specific embodiments, supporting layered patent protection.
  • Parallel patent filings in other jurisdictions extend the patent's strategic value and market control.
  • Future patent maintenance, potential challenges, or licensing opportunities depend on the evolving legal and competitive environment.

FAQs

1. What is the primary innovation claimed in U.S. Patent 8,648,095?
The patent primarily claims a specific chemical compound with novel substitutions and its therapeutic application, claiming both the molecule and methods of use.

2. How does this patent influence development in its therapeutic area?
It potentially blocks competitors from manufacturing similar compounds or therapies, thus shaping market entry strategies and encouraging licensing opportunities.

3. Can the claims be challenged or invalidated?
Yes, through challenges based on prior art, obviousness, or lack of novelty. Validity assessments require detailed prior art searches and legal expertise.

4. What is the scope of protections offered by the claims?
Depending on claim language, protections range from specific compounds to broader subclasses, with dependent claims narrowing the scope.

5. How does this patent intersect with international patent rights?
Filing family members in other jurisdictions extend protection globally, but each country’s patent law and prior art differ, affecting enforceability.


Sources:

[1] United States Patent and Trademark Office (USPTO). Patent database.
[2] Patent document 8,648,095. Manufacturer filings and public PAIR records.
[3] Patent landscape analyses in relevant therapeutic areas.

More… ↓

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Drugs Protected by US Patent 8,648,095

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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 8,648,095

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2105135 ⤷  Get Started Free 1590004-6 Sweden ⤷  Get Started Free
European Patent Office 2105135 ⤷  Get Started Free C300717 Netherlands ⤷  Get Started Free
European Patent Office 2105135 ⤷  Get Started Free CA 2015 00006 Denmark ⤷  Get Started Free
European Patent Office 2105135 ⤷  Get Started Free 92642 Luxembourg ⤷  Get Started Free
European Patent Office 2105135 ⤷  Get Started Free C20150005 00140 Estonia ⤷  Get Started Free
European Patent Office 2105135 ⤷  Get Started Free 212 50002-2015 Slovakia ⤷  Get Started Free
European Patent Office 2105135 ⤷  Get Started Free 122015000013 Germany ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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