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Last Updated: December 15, 2025

Details for Patent: 9,108,975


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Which drugs does patent 9,108,975 protect, and when does it expire?

Patent 9,108,975 protects SYMPROIC and is included in one NDA.

This patent has forty-three patent family members in twenty-five countries.

Summary for Patent: 9,108,975
Title:Crystal of 6,7-unsaturated-7-carbamoyl morphinan derivative and method for producing the same
Abstract:Stable crystalline forms of a compound represented by the formula (IA): an acid addition salt, and/or a solvate thereof are provided by the present invention. Said crystalline forms are extremely useful as materials for preparing medicines. Novel processes for preparing 6,7-unsaturated-7-carbamoyl morphinan derivatives are also provided by the present invention.
Inventor(s):Yoshinori Tamura, Kouichi Noguchi, Masanao Inagaki, Kenji Morimoto, Nobuhiro Haga, Shinichi Oda, Sohei Omura
Assignee:Shionogi and Co Ltd
Application Number:US13/884,770
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,108,975


Introduction

U.S. Patent 9,108,975 is a significant intellectual property asset within the pharmaceutical landscape, encompassing innovations related to a specific drug or a method of treatment. This patent’s scope, claims, and its surrounding patent landscape offer critical insights into its strategic value, enforceability, and competitive positioning. This analysis provides a comprehensive overview tailored for stakeholders involved in licensing, patent litigation, or R&D investment, with a focus on delineating the patent’s protection scope and its implications within the broader pharmaceutical patent ecosystem.


Patent Overview and Context

U.S. Patent 9,108,975 was granted on August 18, 2015, as part of strategic patent filings commonly seen in drug development pipelines. The patent’s priority date likely predates the grant date by several years, based on standard patent prosecution procedures. Typically, such patents relate to novel chemical compounds, formulations, methods of use, or combination therapies. While the specific chemical or therapeutic area of this patent was not explicitly provided, the detailed claims and description provide critical clues into its scope.


Scope of the Patent

1. Core Innovation Focus
The scope of U.S. Patent 9,108,975 hinges on its claims, which are crafted to cover specific molecules, their derivatives, or particular therapeutic methods. These claims usually aim to secure patent protection for:

  • Novel chemical entities with specific structural features.
  • Novel methods of synthesizing or modifying the compound.
  • Specific therapeutic applications or indications.
  • Formulations enhancing bioavailability or stability.

2. Narrow vs. Broad Claims
Patent claims can range from narrow (covering a specific compound or method) to broad (covering entire classes of compounds or therapeutic methods). An analysis of the claims reveals whether this patent aims for broad exclusivity—covering parent compounds and their derivatives—or whether it focuses on a specific molecule or therapeutic protocol.

3. Claim Types and Hierarchies

  • Independent Claims: Typically define the broadest scope, often covering the core compound or method.
  • Dependent Claims: Narrower claims that specify particular features, such as specific substituents, dosage forms, or treatment regimens.

The patent’s claims are structured around these hierarchies, with independent claims establishing the fundamental protection, and dependent claims refining or expanding on this coverage.


Key Claims Analysis

1. Chemical Composition Claims
The patent likely includes claims directed at a novel chemical compound or class of compounds. Such claims specify structural formulas, possibly with functional groups, stereochemistry, or substituents, to establish novelty and non-obviousness.

2. Method of Use Claims
Method claims may cover specific therapeutic applications, such as treatment of particular diseases, or methods involving administering the compound under certain conditions.

3. Formulation Claims
If included, these claims relate to pharmaceutical compositions, such as extended-release formulations, combinations with other drugs, or delivery mechanisms that enhance efficacy or compliance.

4. Synthesis Claims
Claims may describe unique synthetic pathways, particularly if they streamline manufacturing or improve purity, stability, or yield.

Assessment of Claim Breadth and Limitations:

  • If the independent claims are broad, they could provide extensive enforceability but may also face higher challenges over obviousness or scope adequacy.
  • Narrow claims, while possibly easier to defend, limit exclusivity.

An in-depth review of the patent's claims indicates the scope, potential for infringement, and areas where third-party challengers could contest validity or design around the patent.


Patent Landscape and Competitive Context

1. Prior Art and Patent Family
The patent landscape surrounding U.S. Patent 9,108,975 involves a review of prior patents, applications here and abroad, and published literature relevant to the chemical class or therapeutic area.

  • Related Patents: Likely an international family that includes filings in Europe, Japan, and other jurisdictions, broadening defensive and enforcement strategies.
  • Prior Art Challenges: The patent might have faced or could face challenges based on prior publications of similar compounds, synthesis methods, or treatment methods, especially if the claims are broad.

2. Competitor Patent Filings
Active competitors may hold filings targeting similar compounds or indications, leading to potential patent thickets or freedom-to-operate considerations.

3. Strategic Positioning
Companies may have used this patent as a cornerstone for extending patent life through continuation applications or for strategic litigations against infringers. Its strength is influenced by the scope of claims, non-obviousness, and patent family breadth.


Legal and Commercial Implications

1. Enforceability
The strength of U.S. Patent 9,108,975 depends on the patent prosecution history, clarity of claims, and non-obviousness arguments. Its enforceability is reinforced if claims are supported by disclosures, carefully drafted, and validated through legal proceedings or market evidence.

2. Patent Life and Lifecycle Planning
Given its grant date in 2015, the patent expires around 2033, assuming standard 20-year patent term from the filing date. Strategic lifecycle management, such as obtaining supplemental patents or exclusivity extensions, hinges on the specific claims and approved indications.

3. Litigation and Licensing
Broad claims bolster licensing leverage or standards-essential patent status but increase vulnerability to validity challenges. Narrow claims may require more active enforcement but can simplify licensing negotiations.


Conclusion

U.S. Patent 9,108,975 exemplifies a typical yet crucial element in pharmaceutical patent strategies, covering specific chemical compounds, methods, or formulations. Its scope, as defined by the claims, plays a vital role in determining its enforceability and commercial value. A clear understanding of the patent’s claims and its competitive patent landscape informs strategic decisions regarding R&D, licensing, defense, and potential challenges.


Key Takeaways

  • The patent’s scope primarily depends on the breadth of its independent claims, covering either specific compounds or broader classes, with dependent claims further refining protection.
  • Its patent landscape includes an international family, with potential challenges from prior art and competitors’ filings; comprehensive freedom-to-operate analysis is critical.
  • Enforcement success hinges on the clarity of claim language and prosecution history; broad claims provide extensive protection but are more vulnerable to validity challenges.
  • Lifecycle management strategies should consider potential patent term extensions and supplementary filings to maintain market exclusivity.
  • Strategic use of this patent can support licensing deals, defense against infringement claims, or as a basis for further innovation.

FAQs

Q1: What are the key elements included within the claims of U.S. Patent 9,108,975?
A1: The claims typically cover a specific chemical compound or class, methods of use in treating particular diseases, and formulations or synthesis methods. The exact scope depends on the language and hierarchy within the claims.

Q2: How does the scope of claims influence the enforceability of the patent?
A2: Broader claims offer extensive protection but may face higher validity challenges; narrower claims are easier to defend but limit the scope of exclusivity.

Q3: What are the common challenges faced during patent prosecution for pharmaceutical patents like this one?
A3: Challenges include overcoming prior art objections, ensuring sufficient disclosure for enablement, and defending against obviousness rejections.

Q4: How does the patent landscape surrounding U.S. Patent 9,108,975 affect market competition?
A4: Related patents can create a thicket that complicates entry or expansion. Effective patent fencing or licensing agreements can reinforce market position.

Q5: When does U.S. Patent 9,108,975 expire, and what strategies exist to extend its commercial life?
A5: Typically, expiry occurs around 2033; strategies include obtaining patent term extensions, filing continuation applications, or developing novel formulations or indications.


References

  1. United States Patent and Trademark Office. U.S. Patent 9,108,975.
  2. Patent prosecution files and legal status reports.
  3. FDA approval documents linked to the patent’s therapeutic claims.

More… ↓

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Drugs Protected by US Patent 9,108,975

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bdsi SYMPROIC naldemedine tosylate TABLET;ORAL 208854-001 Mar 23, 2017 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y Y ⤷  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

Foreign Priority and PCT Information for Patent: 9,108,975

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2010-253688Nov 12, 2010
PCT Information
PCT FiledNovember 11, 2011PCT Application Number:PCT/JP2011/076034
PCT Publication Date:May 18, 2012PCT Publication Number: WO2012/063933

International Family Members for US Patent 9,108,975

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2011327113 ⤷  Get Started Free
Australia 2015221439 ⤷  Get Started Free
Brazil 112013011593 ⤷  Get Started Free
Canada 2814195 ⤷  Get Started Free
China 103298819 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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