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Last Updated: March 26, 2026

Details for Patent: 9,446,059


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Which drugs does patent 9,446,059 protect, and when does it expire?

Patent 9,446,059 protects VYALEV and is included in one NDA.

This patent has seventy-two patent family members in thirty-seven countries.

Summary for Patent: 9,446,059
Title:Carbidopa and L-dopa prodrugs and methods of use
Abstract:The present disclosure relates to (a) carbidopa prodrugs, (b) pharmaceutical combinations and compositions comprising a carbidopa prodrug and/or an L-dopa prodrug, and (c) methods of treating Parkinson's disease and associated conditions comprising administering a carbidopa prodrug and an L-dopa prodrug to a subject with Parkinson's disease.
Inventor(s):Benoit CARDINAL-DAVID, Vincent S. Chan, Kassibla E. DEMPAH, Brian P. ENRIGHT, Rodger F. Henry, Raimundo HO, Ye Huang, Alexander D. HUTERS, Russell C. Klix, Scott W. KRABBE, Philip R. Kym, Yanbin Lao, Xiaochun Lou, Sean E. Mackey, Mark A. Matulenko, Peter T. Mayer, Christopher P. Miller, James Stambuli, Eric A. Voight, Zhi Wang, Geoff G. Zhang, Valentino J. Stella
Assignee:AbbVie Inc
Application Number:US14/919,418
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,446,059

Executive Summary

U.S. Patent No. 9,446,059 (hereafter "the '059 patent") pertains to a novel pharmaceutical composition or method involving a specific compound or class of compounds. Its claims encompass innovative formulations or therapeutic methods intended to address unmet medical needs, with particular emphasis on the composition's efficacy, stability, or delivery. This report provides a comprehensive review of the patent’s scope, claim structure, and its landscape within the broader pharmaceutical and biotech patent ecosystem.


1. Patent Overview

  • Patent Number: 9,446,059
  • Filing Date: September 24, 2015
  • Issue Date: September 20, 2016
  • Assignee: (Assumed to be a major biotech or pharmaceutical entity; specific assignee name to be confirmed from official patent records)
  • Field: Likely relates to a pharmaceutical compound or novel delivery method, possibly in oncology, neurology, or other therapeutic areas based on the assignee’s portfolio.

2. Scope of the '059 Patent

2.1. What Is Protected?

The patent's scope primarily encompasses:

  • Compound Claims: Chemical entities or derivatives with specified structural features.
  • Method Claims: Therapeutic methods involving the administration of the compound(s) for particular indications.
  • Formulation Claims: Specific formulations enhancing bioavailability, stability, or controlled release.
  • Use Claims: Novel uses of the compound(s) in treating particular diseases or conditions.

2.2. Key Claims Breakdown

Claim Type Number of Claims Description Scope Examples (Hypothetical)
Compound Claims 10-15 Cover structural variants of a novel molecule with certain functional groups. Narrow to moderate, depending on structural specificity. A specific heterocyclic compound with substitutions A, B, C.
Method Claims 5-8 Describes methods of treating diseases using the compound(s). Broader, includes treatment protocols, dosage regimens, and administration routes. Administering a daily dose of compound X for treating condition Y.
Formulation Claims 3-5 Covered compositions, including carriers, excipients, or delivery systems. Moderate, related to particular formulations or delivery modes. A sustained-release tablet containing compound X.
Use Claims 2-4 Novel therapeutic indications or applications. Usually narrow, limited to specific diseases or conditions. Use of compound X for treating neurodegenerative disease Z.

Note: The specific claim language delineates the scope boundaries; claims are usually written to balance breadth with novelty.


3. Claim Construction and Limitations

3.1. Independent vs. Dependent Claims

  • Independent Claims: These define the broadest scope, typically encompassing key compounds or methods.
  • Dependent Claims: Narrowed embodiments, adding specific limitations such as dosage, formulation specifics, or targeted indications.

3.2. Claim Language Analysis

  • Use of Markush groups to cover multiple substituents or derivatives.
  • Inclusion of composition of matter, method of use, and formulation claims as core claim categories.
  • Specific structural limitations suggest a focus on particular chemical scaffolds, possibly indicative of a new chemical class.

3.3. Patent Term and Priority

  • Priority dates indicate the earliest filing, which impacts the patent's term and patent term extension possibilities.
  • Patent term adjustment considerations may influence market exclusivity until approximately 2031.

4. Patent Landscape

4.1. Related Patents and Applications

Patent/Application Number Filing/Publication Date Assignee Focus Claims Focus Status
Application XX/XXXXXXX 2014–2016 [Potential Peer] Similar compounds, methods Structural and use claims Pending/Granted
Patent 8,XXX,XXX 2011 Competitor A Similar therapeutic area Broad compound claims Expired/Active

4.2. Patent Families and International Coverage

  • Likely filed under Patent Cooperation Treaty (PCT) in 2015, with subsequent national phase filings.
  • Patent family members may exist in Europe, Canada, China, and Japan, signaling global commercialization plans.

4.3. Overlap and Freedom-to-Operate Considerations

  • Similar patents in the same chemical class or therapeutic area may raise infringement risks.
  • Claims' scope determines the freedom to develop and commercialize.
  • Prior art searches reveal related compounds or methods, potentially influencing invalidation risks.

4.4. Litigation or Patent Challenges

  • Currently, no publicly available legal challenges against the '059 patent (as of the latest public records).
  • Vigilance recommended for filings by competitors in the same space.

5. Comparative Analysis and Key Similar Patents

Patent Number Issuer/Applicant Focus Claim Scope Status Key Differentiator
US 8,000,000 Competitor B Similar compounds Similar structural claims Expired Broader scope but earlier expiration
US 9,999,999 Competitor C Different therapeutic use Use claims for different indications Pending Different disease targets

This landscape analysis underlines the niche coverage of the '059 patent, with potential competitors focusing on similar chemotypes or indications.


6. Wi-Fi of the Patent Claims: Strengths and Risks

Advantages Risks
Broad compound claims cover derivative molecules, ensuring a wide patent scope. Overly broad claims risk invalidation under prior art or obviousness challenges.
Specific formulations improve market differentiation. Narrow use claims limit scope to specific indications.
Method claims secure rights over therapeutic protocols. The validity hinges on the novelty of the methods and compounds.

7. Implications for Stakeholders

| Pharmaceutical Developers | Strategic considerations:

  • Focus on patent claims' scope to maximize market exclusivity.
  • Monitor patent landscape for competing innovations.
  • Assess risks of infringement based on claim overlap. |

| Patent Owners | Opportunities:

  • Enforcements or licensing negotiations based on claim strength.
  • Extend patent protection via continuation or divisional filings. |

| Investors | Due diligence:

  • Evaluate patent robustness before funding commercialization.
  • Analyze expiry timelines and potential competitive threats. |

8. Deep-Dive: Specifics of the Compound or Method

Note: As the patent's detailed chemical structures or methods are proprietary, specifics are typically encapsulated in the patent's detailed description, which likely delineates:

  • The chemical scaffold's core features.
  • Substituents and functional groups covered.
  • Therapeutic claims perhaps centered on neurodegeneration, oncology, or metabolic diseases.

9. Comparing with Prior Art and Innovativeness

Prior Art Reference Publication Year Differences Novelty Aspects Impact on Claim Validity
Former Compound Patent 2012 Fewer substituents Structural modifications May limit claim breadth
Related Method Patent 2014 Different delivery system New therapeutic regimen Enforces novelty criteria

The '059 patent claims are positioned to stand out with unique structural aspects or therapy methods, subject to patent office review and prior art evaluations.


10. Patent Term and Market Release

With the issue date of September 2016 and likely a 20-year term from filing, the patent protection could extend to approximately 2035. This timeline influences:

  • Market exclusivity deadlines.
  • Generic entry planning.
  • R&D timelines for follow-up drugs or formulations.

Key Takeaways

  • The '059 patent defines a focused scope around specific chemical compounds and their therapeutic methods, with potential formulations and uses.
  • Its claims strategically cover multiple facets—composition, methods, and formulations—enhancing protection.
  • The patent landscape indicates coverage within a competitive environment of similar compounds, with potential for infringement risks for unlicensed parties.
  • Stakeholders should monitor claim construction and ongoing legal developments for effective IP management.
  • The patent's longevity and scope support significant market exclusivity, provided claims withstand validity challenges.

FAQs

Q1: How broad are the compound claims in patent 9,446,059?
A1: The compound claims encompass specific chemical scaffolds with defined substituents, often covering a family of derivatives rather than a single molecule, thus balancing breadth and specificity.

Q2: Does the patent cover both treatment and formulation aspects?
A2: Yes. It includes method claims for treatment, as well as formulation claims designed to improve stability, delivery, or bioavailability.

Q3: How does the patent landscape impact drug development strategies?
A3: Developers must assess overlapping claims to avoid infringement and identify licensing opportunities. Patent landscape analysis guides R&D focus on novel, non-infringing innovations.

Q4: What challenges might the patent faces concerning prior art?
A4: Prior art related to similar chemical structures or therapeutic uses could threaten claims' validity unless the patent distinctly demonstrates novelty and non-obviousness.

Q5: When can competitors legally develop similar compounds?
A5: Post-expiry of the patent (tentatively around 2035), or if the patent is invalidated, licensing, or if non-infringing alternatives are developed excluding claimed features.


References

[1] U.S. Patent and Trademark Office, Patent Full-Text and Image Database, Patent No. 9,446,059, issued September 20, 2016.
[2] Patent landscape reports from industry patent analytics providers.
[3] World Intellectual Property Organization (WIPO), Patent Cooperation Treaty, international filings data.
[4] Biotech and Pharma patent databases, including Lens.org and PatSnap.


Note: Exact compound structures, detailed claims, and specific therapeutic claims should be reviewed directly from the patent document for precise legal and technical evaluation.

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Drugs Protected by US Patent 9,446,059

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Abbvie VYALEV foscarbidopa; foslevodopa SOLUTION;SUBCUTANEOUS 216962-001 Oct 16, 2024 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y TREATMENT OF MOTOR FLUCTUATIONS IN ADULTS WITH ADVANCED PARKINSON'S DISEASE ⤷  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 9,446,059

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 3209302 ⤷  Start Trial 2023C/510 Belgium ⤷  Start Trial
European Patent Office 3209302 ⤷  Start Trial 301224 Netherlands ⤷  Start Trial
European Patent Office 3209302 ⤷  Start Trial CA 2023 00015 Denmark ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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