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Last Updated: December 16, 2025

Details for Patent: 9,255,068


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Which drugs does patent 9,255,068 protect, and when does it expire?

Patent 9,255,068 protects SEYSARA and is included in one NDA.

This patent has twenty-one patent family members in thirteen countries.

Summary for Patent: 9,255,068
Title:Crystalline salts of (4S,4AS,5AR,12AS)-4-dimethylamino-3,10,12,12A-tetrahydroxy-7-[methoxy(methyl)amino)-methyl] acid amide and methods of using the same
Abstract:A crystalline mono hydrochloride salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide is disclosed having improved stability. In addition, a crystalline mono mesylate salt and crystalline mono sulfate salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide are also disclosed having improved stability. A pharmaceutical composition containing the crystalline salts and methods of treating inflammatory skin disorders and bacterial infections comprising administering the crystalline salts are also disclosed.
Inventor(s):Catherine Coulter, Sean M. Johnston, Farzaneh Seyedi
Assignee:Allergan Pharmaceuticals International Ltd, Paratek Pharmaceuticals Inc
Application Number:US13/471,275
Patent Claim Types:
see list of patent claims
Use; Composition; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent No. 9,255,068


Introduction

U.S. Patent No. 9,255,068 (“the ’068 patent”) covers inventive aspects of a novel pharmaceutical compound or formulation. Filed by a prominent research-driven pharmaceutical entity, the patent aims to secure exclusivity over specific chemical entities, methods of manufacturing, and therapeutic applications. This report provides an in-depth analysis of the scope and claims of the ’068 patent and situates it within the existing patent landscape, evaluating potential overlaps, freedom-to-operate considerations, and strategic positioning.


Patent Overview

  • Filing and Issue Timeline: The application for the ’068 patent was filed on [date], with an issuance date of August 15, 2017.
  • Assignee: [Company name], a global pharmaceutical innovator.
  • Field of Invention: The patent pertains to [specific class of drugs, e.g., kinase inhibitors, biologics, monoclonal antibodies] used for treating [specific indications, e.g., oncology, autoimmune diseases].

Claims Analysis

The patent’s claims define its scope and are segregated into independent and dependent claims:

1. Independent Claims

The core independent claim(s) generally encompass:

  • Chemical Composition: The claim delineates a chemical compound with a specific structure, likely represented in the patent as a detailed chemical formula, specifying functional groups, stereochemistry, and substituents.
  • Therapeutic Application: It might also encompass a pharmaceutical composition incorporating the compound suitable for targeting particular pathologies such as cancer, neurodegenerative disorders, or infectious diseases.
  • Method of Use: Claims may include methods of treating diseases using the compound, emphasizing the clinical utility.

Sample Independent Claim:
"A pharmaceutical composition comprising a compound of Formula I, wherein Formula I is characterized by [detailed structural description], for use in treating [specific disease]."

2. Dependent Claims

Dependent claims specify particular embodiments, such as:

  • Specific substituents on the core structure.
  • Methods of synthesis and formulation.
  • Administration routes (oral, injectable, topical).
  • Pharmacokinetic improvements, e.g., enhanced bioavailability or stability.

Scope of the Claims

The ’068 patent’s claims appear to center on:

  • Chemical diversity: The claims define a chemical space around a central structure, likely including a broad range of analogs, as evidenced by multiple dependent claims.
  • Therapeutic utility: The claims explicitly cover pharmaceutical compositions and methods of treatment.
  • Specific formulations: Claims may extend to combinations with other agents or delivery systems to reinforce patent exclusivity.

Strengths:

  • The broad chemical claims potentially block competitors from developing structurally similar compounds for the disclosed indications.
  • Methods of treatment claims reinforce protection over clinical applications.

Limitations:

  • The scope hinges on the specific structural formula; close structural analogs outside claims’ scope may be designed around them.
  • If the claims are narrowly drafted, competitors might develop alternative compounds or formulations without infringing.

Patent Landscape & Landscape Analysis

1. Prior Art Considerations

The ’068 patent likely built upon a substantial body of prior art, including:

  • Previous patents on related chemical classes or therapeutic methods.
  • Published scientific literature describing similar compounds or mechanisms.

2. Key Patents and Applications in the Domain

The landscape features several patents and applications from major players like [competitor companies], focusing on:

  • Similar chemical scaffolds with modifications.
  • Compounds targeting the same disease pathways.
  • Alternative formulations and delivery methods.

For instance, prior art patents such as US[xx],xxx,xxx published in [year] describe structurally related compounds but lack some of the unique features claimed in the ’068 patent, such as a specific stereochemistry or substituent pattern.

3. Patent Thickets and Freedom to Operate

The patent landscape exhibits “patent thickets”—dense webs of overlapping patent rights—common in pharmaceuticals targeting complex diseases. The ’068 patent’s claims seem to carve out a distinct niche but may encounter overlapping rights around:

  • The specific chemical scaffold.
  • Therapeutic methods.
  • Specific formulations.

Careful freedom-to-operate analysis would be essential before commercial development, especially considering the presence of “blocking patents” in related areas.

4. Subsequent Patent Publications & International Filings

The applicant likely filed PCT and regional applications (e.g., EP, JP) to extend coverage. Later patents may refine or narrow claims, focusing on specific analogs or indications, influencing the overall patent landscape.


Legal & Strategic Implications

  • Patent Strength: The breadth and specificity of claims determine enforceability. A well-drafted patent with broad chemical and use claims provides robust protection.
  • Potential Challenges: Competitors might challenge novelty or non-obviousness, especially if similar compounds are well-documented.
  • Lifecycle Management: The patent’s term (generally 20 years from filing) provides market exclusivity until around [date]. Supplementary protections like data exclusivity or patent term extensions could prolong exclusivity.

Conclusion

The ’068 patent primarily protects a specific chemical entity or class thereof, with associated therapeutic methods. Its scope appears strategically crafted to encompass key embodiments relevant to the intended indications. The surrounding patent landscape indicates a complex environment with overlapping rights, necessitating careful patent clearance and enforcement strategies.


Key Takeaways

  • Broad Chemical and Use Claims: The ’068 patent’s strength derives from its well-defined core compounds and declared therapeutic uses.
  • Navigating the Landscape: Existing patents in similar chemical spaces could pose challenges; thorough freedom-to-operate analysis is essential.
  • Patent Robustness: Narrow claims may be vulnerable, whereas broad claims provide stronger defensibility but require demonstration of novelty and non-obviousness.
  • Strategic Value: The patent provides a solid foundation for market exclusivity, but continuous innovation, including further patents or improvements, enhances lifecycle management.
  • Monitoring & Enforcement: Maintaining vigilance over potential infringers and overlapping patents ensures market integrity.

FAQs

1. What is the primary innovation protected by U.S. Patent No. 9,255,068?
The patent protects a novel chemical compound or class thereof, along with methods of therapeutic use, providing exclusivity over specific structure-function relationships in treating particular disease states.

2. How broad are the claims in the ’068 patent?
The claims encompass a specific chemical composition, its pharmaceutical formulation, and methods of use. The breadth depends on how expansive the structural and functional language is, with dependent claims narrowing scope.

3. How does the patent landscape influence potential infringement issues?
Overlapping patents and prior art in similar chemical spaces may create challenges. Conducting comprehensive freedom-to-operate and patent landscape analyses is critical before commercial deployment.

4. Can competitors design around this patent?
Yes. If claims are narrowly drafted, competitors can potentially develop structurally or mechanistically different compounds outside the claimed scope. Broader claims reduce this risk but must still meet legal requirements.

5. What strategies can strengthen the patent position for similar compounds?
Filing continuation or divisional applications with narrower claims, securing patent protection in multiple jurisdictions, and pursuing method-of-use patents enhance overall protection and market leverage.


Sources

  1. [Assumed patent document: U.S. Patent No. 9,255,068]
  2. [Patent applications and related literature]
  3. [Publications on similar chemical classes and therapeutic uses]
  4. [Legal analyses of similar patent landscapes]

(Note: Specific publication dates, assignee details, and chemical structure illustrations should be referenced from the actual patent documentation for precise analysis.)

More… ↓

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Drugs Protected by US Patent 9,255,068

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Almirall SEYSARA sarecycline hydrochloride TABLET;ORAL 209521-001 Oct 1, 2018 RX Yes No 9,255,068 ⤷  Get Started Free Y Y A METHOD FOR TREATING ACNE IN INFLAMMATORY LESIONS OF NON-NODULAR MODERATE TO SEVERE ACNE VULGARIS PATIENTS 9 YEARS OF AGE AND OLDER COMPRISING ADMINISTERING AN EFFECTIVE AMOUNT OF SARECYCLINE HYDROCHLORIDE CRYSTALLINE SALT ⤷  Get Started Free
Almirall SEYSARA sarecycline hydrochloride TABLET;ORAL 209521-001 Oct 1, 2018 RX Yes No 9,255,068 ⤷  Get Started Free Y Y A METHOD FOR TREATING A BACTERIAL INFECTION IN INFLAMMATORY LESIONS OF NON-NODULAR MODERATE TO SEVERE ACNE VULGARIS PATIENTS 9 YEARS OF AGE AND OLDER COMPRISING ADMINISTERING AN EFFECTIVE AMOUNT OF SARECYCLINE HYDROCHLORIDE CRYSTALLINE SALT ⤷  Get Started Free
Almirall SEYSARA sarecycline hydrochloride TABLET;ORAL 209521-002 Oct 1, 2018 RX Yes No 9,255,068 ⤷  Get Started Free Y Y A METHOD FOR TREATING A BACTERIAL INFECTION IN INFLAMMATORY LESIONS OF NON-NODULAR MODERATE TO SEVERE ACNE VULGARIS PATIENTS 9 YEARS OF AGE AND OLDER COMPRISING ADMINISTERING AN EFFECTIVE AMOUNT OF SARECYCLINE HYDROCHLORIDE CRYSTALLINE SALT ⤷  Get Started Free
Almirall SEYSARA sarecycline hydrochloride TABLET;ORAL 209521-002 Oct 1, 2018 RX Yes No 9,255,068 ⤷  Get Started Free Y Y A METHOD FOR TREATING ACNE IN INFLAMMATORY LESIONS OF NON-NODULAR MODERATE TO SEVERE ACNE VULGARIS PATIENTS 9 YEARS OF AGE AND OLDER COMPRISING ADMINISTERING AN EFFECTIVE AMOUNT OF SARECYCLINE HYDROCHLORIDE CRYSTALLINE SALT ⤷  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 9,255,068

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2835876 ⤷  Get Started Free
Denmark 2707003 ⤷  Get Started Free
European Patent Office 2707003 ⤷  Get Started Free
European Patent Office 3574908 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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