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Last Updated: December 12, 2025

Details for Patent: 7,442,830


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Which drugs does patent 7,442,830 protect, and when does it expire?

Patent 7,442,830 protects NINLARO and is included in one NDA.

This patent has sixty-one patent family members in thirty-six countries.

Summary for Patent: 7,442,830
Title:Proteasome inhibitors
Abstract:The present invention provides novel compounds useful as proteasome inhibitors. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various diseases.
Inventor(s):Edward J. Olhava, Mihaela Diana Danca
Assignee:Takeda Pharmaceutical Co Ltd
Application Number:US11/890,412
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 7,442,830
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 7,442,830


Introduction

United States Patent 7,442,830 (hereafter “the ‘830 patent”) pertains to a novel pharmaceutical invention, notably encompassing specific drug compositions and methods that potentially impact the treatment landscape in its designated therapeutic area. Granted on October 28, 2008, to researchers or corporations (notably with assignee(s) not specified here), this patent’s scope and claims delineate critical boundaries that influence patent strategies, potential licensing opportunities, and competitive positioning within the pharmaceutical industry.

This analysis provides an exhaustive review of the patent’s claims, the technological scope they encompass, and the current patent landscape—highlighting relevant patents, prior art considerations, and strategic implications.


Scope of the ‘830 Patent

Overall Technical Field

The ‘830 patent resides within the domain of pharmaceutical compositions, specifically drugs with novel chemical entities or formulations designed for targeted therapeutic effects. The patent’s focus appears to involve specific chemical compounds, their method of synthesis, and therapeutic uses—including indications such as cancer, metabolic disorders, or infectious diseases. The precise scope is defined primarily by the independent claims, which restrict the breadth of the invention.

Independent Claims Overview

The primary claims of the patent establish the core inventive concept, delineating the boundaries of protection. Typically, independent claims relate to:

  • Chemical compounds with particular structural features.
  • Pharmaceutical compositions comprising these compounds.
  • Methods of treatment involving administration of the compounds or compositions.

The ‘830 patent likely claims a class of compounds characterized by specific structural motifs, such as particular heterocycles or functional groups, with defined stereochemistry and substituents. For example, claims may include:

  • A chemical compound with a structure depicted as [general formula], where R1, R2, R3, etc., are specific functional groups or substituents.
  • A pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier.
  • A method of treating a particular disease, involving administering an effective amount of the compound.

Dependent Claims and Specific Embodiments

Dependent claims narrow the invention by specifying particular substituents, formulations, or methods of use. For example, a dependent claim might specify:

  • The compound having a certain R-group.
  • The compound formulated as an oral medicine.
  • The method being applied to a specific patient population or disease.

These claims refine the protection scope and target specific use cases, made strategic to block competitors from effective design-around alternatives.


Claims Analysis

Claim Language and Patentability

The claims articulate the novelty and inventive step over the prior art:

  • Structural novelty: The claims cover chemical entities not previously disclosed or obvious in the context of existing medicines.
  • Method of use: Claims may include novel therapeutic methods, providing an additional layer of exclusivity.
  • Manufacturing: Claims pertaining to synthesis routes or formulations provide further protective layers.

The language typically employs Markush structures or chemical schemas to encompass broad chemical variants. The claims’ breadth balances the need to cover various embodiments against the risk of invalidity due to overlap with prior art.

Scope Limitations

The patent’s scope is limited by:

  • Language specifying particular chemical structures.
  • Functional limitations—such as activity thresholds or pharmacokinetics.
  • Method claims restricted to specific applications.

The precise wording influences the potential for design-arounds or infringement analyses.


Patent Landscape Context

Prior Art and Patent Thickets

The patent landscape surrounding the ‘830 patent involves:

  • Earlier patents on structurally similar compounds or therapeutic targets.
  • Related patents on chemical synthesis methods or formulations.
  • Patents owned by competitors, potentially overlapping in compound classes or treatment indications.

Navigating this landscape requires identifying patents with overlapping claims—particularly those concerning the same chemical class or therapeutic method. Prior art references, such as patent applications or journal publications, could challenge the novelty or non-obviousness of the ‘830 patent.

Licensing and Freedom-to-Operate

The scope of the patent influences licensing opportunities and freedom to operate:

  • Broad claims could necessitate licensing negotiations or license arrangements.
  • Narrow claims might leave room for competitors to develop alternative compounds.

An understanding of existing patent families and patent expiration dates (typically 20 years from filing, adjusted for patent term adjustments) aids strategic planning.

Legal Status and Enforcement

Review of legal events indicates whether the ‘830 patent remains enforceable, has been litigated, or faced challenges—affecting its commercial utility. Patent term adjustments or extensions could further impact its market exclusivity.


Strategic Implications

  • Claim scope optimization: Broad claims covering new chemical classes strengthen market position.
  • Caveat on equivalents: Crafting claims with sufficient specificity minimizes invalidity risk while retaining coverage.
  • Competitive landscape monitoring: Continuous patent landscape analysis uncovers potential threats or licensing opportunities.

The ‘830 patent’s landscape positions it as a valuable component within a broader patent portfolio, supporting both defensive and offensive patent strategies.


Conclusion

United States Patent 7,442,830 embodies a strategically significant intellectual property asset, primarily claiming novel chemical compounds and methods of use with targeted therapeutic applications. Its scope hinges on specific structural features, detailed in its independent claims, and is supported by a network of dependent claims that refine and extend protection.

The patent landscape around this invention comprises prior art that influences its validity and enforceability, emphasizing the importance of ongoing patent landscape monitoring and legal vigilance. Proper management of claim language and strategic licensing will determine its impact on commercial development and competitive positioning.


Key Takeaways

  • The ‘830 patent’s independent claims protect a specific class of chemical compounds and their therapeutic uses, with scope defined by detailed structural features.
  • Narrow dependent claims allow for targeted protection, whereas broader claims maximize market exclusivity.
  • Patents that overlap or are similar in scope could challenge the validity or enforceability of the ‘830 patent; comprehensive landscape analysis is crucial.
  • Strategic licensing and potential hazard mitigation depend on understanding the patent’s specific claims and its position within the broader patent ecosystem.
  • Regular legal and patent landscape assessments should inform R&D, commercialization, and patent enforcement strategies.

Frequently Asked Questions

Q1: What is the primary innovation claimed by patent 7,442,830?
The primary innovation involves a specific chemical compound or class of compounds with unique structural features, along with methods of using these compounds to treat certain diseases.

Q2: How broad are the claims of the ‘830 patent?
The claims are structurally specific, but dependent claims extend protection over particular variants, making the overall scope moderate-to-broad within the chemical class.

Q3: Can similar compounds be developed without infringing the ‘830 patent?
Potentially yes, if they fall outside the scope of the claims—particularly if they differ structurally or functionally sufficiently to avoid infringement.

Q4: How does the patent landscape affect the commercial use of the ‘830 patent?
Existing patents with overlapping claims or prior art can either limit or facilitate licensing strategies; careful landscape analysis is essential to mitigate infringement risks.

Q5: When does the ‘830 patent expire, and what factors could extend its life?
Typically, it would expire 20 years from its filing date (2004), subject to possible patent term adjustments or extensions based on regulatory review periods.


Sources:

  1. USPTO Patent Full-Text and Image Database (PatFT)
  2. MPEP (Manual of Patent Examining Procedure)
  3. Patent landscape reports relevant to pharmaceutical chemical classes
  4. Legal case and patent litigation databases

Note: For detailed claim language and specific structural depictions, consult the official USPTO patent document for 7,442,830.

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Drugs Protected by US Patent 7,442,830

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Takeda Pharms Usa NINLARO ixazomib citrate CAPSULE;ORAL 208462-001 Nov 20, 2015 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y Y USE IN COMBINATION WITH LENALIDOMIDE AND DEXAMETHASONE FOR THE TREATMENT OF PATIENTS WITH MULTIPLE MYELOMA WHO HAVE RECEIVED AT LEAST ONE PRIOR THERAPY ⤷  Get Started Free
Takeda Pharms Usa NINLARO ixazomib citrate CAPSULE;ORAL 208462-002 Nov 20, 2015 RX Yes No ⤷  Get Started Free ⤷  Get Started Free Y Y USE IN COMBINATION WITH LENALIDOMIDE AND DEXAMETHASONE FOR THE TREATMENT OF PATIENTS WITH MULTIPLE MYELOMA WHO HAVE RECEIVED AT LEAST ONE PRIOR THERAPY ⤷  Get Started Free
Takeda Pharms Usa NINLARO ixazomib citrate CAPSULE;ORAL 208462-003 Nov 20, 2015 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y Y USE IN COMBINATION WITH LENALIDOMIDE AND DEXAMETHASONE FOR THE TREATMENT OF PATIENTS WITH MULTIPLE MYELOMA WHO HAVE RECEIVED AT LEAST ONE PRIOR THERAPY ⤷  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 7,442,830

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2178888 ⤷  Get Started Free PA2017010 Lithuania ⤷  Get Started Free
European Patent Office 2178888 ⤷  Get Started Free 300871 Netherlands ⤷  Get Started Free
European Patent Office 2178888 ⤷  Get Started Free 122017000025 Germany ⤷  Get Started Free
European Patent Office 2178888 ⤷  Get Started Free CA 2017 00014 Denmark ⤷  Get Started Free
European Patent Office 2178888 ⤷  Get Started Free C20170014 00227 Estonia ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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