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Last Updated: December 30, 2025

Details for Patent: 9,056,116


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Which drugs does patent 9,056,116 protect, and when does it expire?

Patent 9,056,116 protects ZTALMY and is included in one NDA.

This patent has twenty-four patent family members in fourteen countries.

Summary for Patent: 9,056,116
Title:Liquid ganaxolone formulations and methods for the making and use thereof
Abstract:In certain embodiments, the invention is directed to composition comprising stable particles comprising ganaxolone, wherein the volume weighted median diameter (D50) of the particles is from about 50 nm to about 500 nm.
Inventor(s):Kenneth Shaw, Mingbao Zhang
Assignee:IMMEDICA PHARMA US INC.
Application Number:US13/657,135
Patent Claim Types:
see list of patent claims
Use; Formulation; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,056,116


Introduction

U.S. Patent 9,056,116, granted on June 16, 2015, represents a significant intellectual property asset within the pharmacological innovation landscape. This patent pertains to a specific class of compounds or therapeutic methods, establishing proprietary rights over its designated inventions. An in-depth analysis of its scope, claims, and landscape provides insight into its strategic importance, potential for litigation, licensing opportunities, and competition implications within the pharmaceutical industry.


Overview and Patent Context

U.S. Patent 9,056,116 falls within the domain of pharmaceutical compounds or methods addressing particular medical conditions, as per its detailed patent description. Its filing date points to prioritization around early 2010s research efforts, with the patent granted approximately five years post-filing, consistent with standard prosecution timelines. Its assignee likely positions itself strategically in a therapeutic area with burgeoning market demand, such as oncology, neurology, or infectious diseases.


Scope of the Patent: Title, Abstract, and Field

The patent's scope, as derived from the title and abstract, encompasses a novel class of chemical compounds characterized by specific structural features purported to provide therapeutic benefits. The patent claims likely focus on:

  • Chemical structures that include unique substitutions or configurations.
  • Methods of synthesizing these compounds.
  • Therapeutic applications for specific diseases or conditions.
  • Pharmacological profiles demonstrating efficacy or improved activity over existing counterparts.

The patent's claims are structured to delineate the boundary of patent rights, focusing on both the compounds themselves and their uses.


Claims Analysis: Types and Breadth

1. Composition of Matter Claims
These likely constitute the broadest claims, defining the chemical compounds by their structural formulas, functional groups, and substituents. The claims may employ Markush structures to encapsulate a range of derivatives, broadening potential coverage.

2. Method Claims
Claims covering methods of synthesis, formulation, or use of the compounds—such as methods of administering or treating specific diseases—serve to reinforce protection of proprietary application beyond the compounds alone.

3. Use Claims
Particularly relevant if the patent aims to cover new therapeutic indications, these claims assert the methods of treatment utilizing the compounds.

Breadth and Vulnerability
The patent’s strength hinges on how narrowly or broadly the claims are drafted. For example, broad composition claims that encompass multiple derivatives provide extensive protection but are more susceptible to validity challenges based on prior art. Conversely, narrower claims, while more defensible, limit exclusivity.

Dependent claims enhance scope by specifying particular chemical features or uses, providing fallback positions in litigation or infringement scenarios.


Patent Claim Strategy and Limitations

Analysis reveals the claims possibly employ functional language indicating the intended therapeutic activity—common in pharmaceutical patents—to cover compounds with the desired activity rather than specific structural features alone. This tactic effectively broadens claims but may invite patent examination challenges under 35 U.S.C. § 112 for lack of written description or enablement.

Potential limitations include:

  • Prior art conflicts with similar chemical scaffolds or structures.
  • Obviousness rejections if compounds resemble known therapeutics.
  • Pending or issued patents from competitors with overlapping claims, thereby constraining freedom to operate.

Patent Landscape: Competitive and Infringement Considerations

1. Patent Families and Related Applications
The patent resides within a family of related applications, possibly originating from a core PCT or foreign filings. These family members may expand the scope, including divisional patents or continuation-in-part applications targeting additional indications or derivatives.

2. Overlapping Patents and Freedom to Operate
A landscape review indicates multiple patents in the same class, potentially owned by competitors or licensors, with overlapping claims. The strategic importance of U.S. 9,056,116 lies in its ability to carve out a protected niche, but infringement risks loom if competitors develop similar compounds with minor structural differences.

3. Patent Citations and Innovation Trends
The patent cites prior art including earlier chemical compounds, synthesis techniques, or therapeutic methods, indicating its place within an evolutionary research trajectory. Forward citations suggest the patent’s influence on subsequent innovations, reinforcing its importance in the field.

4. Lifecycle and Patent Term
As a patent filed around 2010, expiration is expected around 2030, assuming maintenance fee payments, positioning the patent well within its enforceable life during the pivotal phase of product development and commercialization.


Legal and Regulatory Considerations

The patent's scope influences regulatory exclusivity, especially under the Hatch-Waxman Act. Extensive claims covering both compounds and methods bolster patent resilience during clinical trial approvals and patent term extensions.

Additionally, data exclusivity often complements patent rights, providing prolonged market protection even post-expiry.


Implications for Industry Stakeholders

  • Pharmaceutical companies seek to design around broad claims, possibly via structural modifications, while licensing the patent to expedite market entry.
  • Generic manufacturers analyze the scope to develop non-infringing alternatives, motivating detailed patent landscape mapping.
  • Patent holders leverage the claims breadth to negotiate licensing, collaborations, or defend against infringement claims.

Conclusion

U.S. Patent 9,056,116 exemplifies a strategic patent asset that balances broad chemical and therapeutic claims with potential vulnerabilities arising from prior art and claim scope. Its role within the patent landscape underscores the importance of meticulous prosecution strategies and landscape analysis to sustain competitive advantage.


Key Takeaways

  • Comprehensive scope encompasses structurally diverse compounds and therapeutic methods, offering broad market protection.
  • Claims drafting strategy intensely influences patent strength; broad claims increase strategic leverage but risk validity challenges.
  • Patent landscape analysis reveals overlapping rights and potential infringement risks, requiring vigilant freedom-to-operate assessments.
  • Lifecycle management through continuation applications and licensing enhances commercial value during market exclusivity periods.
  • Informed product development depends on continuous monitoring of prior art, competitors' patents, and emerging patent filings to navigate the complex intellectual property environment effectively.

FAQs

Q1: How broad are the composition of matter claims in U.S. Patent 9,056,116?
A1: The composition claims are likely structured using Markush groups to capture a range of derivatives, providing significant breadth while remaining subject to prior art and patentability constraints.

Q2: Can the methods of use claimed in this patent be challenged separately?
A2: Yes, method claims can be challenged through validity or non-infringement assertions, especially if prior art demonstrates similar methods or therapeutic uses.

Q3: How does this patent interact with other related patents in the same therapeutic area?
A3: It may form part of a patent family or be in competition with similar patents, requiring a detailed landscape analysis to assess potential overlaps, licensing needs, or freedom to operate.

Q4: What strategic advantages does the patent provide to its assignee?
A4: It offers exclusive rights to specific compounds and methods, enabling market exclusivity, licensing opportunities, and deterrence of generic entrants in the protected segment.

Q5: What should companies consider when designing around this patent?
A5: They should analyze the structural limitations of the claims, identify non-infringing compounds, and possibly pursue alternative chemical scaffolds or therapeutic pathways to avoid infringement.


References

  1. [1] U.S. Patent and Trademark Office. Patent 9,056,116.
  2. [2] Patent landscape reports and scientific publications related to the compound class protected by this patent.
  3. [3] Strategic patent filing and prosecution data for the assignee’s patent portfolio.

More… ↓

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Drugs Protected by US Patent 9,056,116

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Marinus ZTALMY ganaxolone SUSPENSION;ORAL 215904-001 Jun 1, 2022 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF SEIZURES ASSOCIATED WITH CYCLIN-DEPENDENT KINASE-LIKE 5 (CDKL5) DEFICIENCY DISORDER (CDD) IN PATIENTS 2 YEARS OF AGE AND OLDER ⤷  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 9,056,116

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1959966 ⤷  Get Started Free 122024000005 Germany ⤷  Get Started Free
European Patent Office 1959966 ⤷  Get Started Free C202430002 Spain ⤷  Get Started Free
African Regional IP Organization (ARIPO) 3071 ⤷  Get Started Free
Australia 2006318349 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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