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Last Updated: December 18, 2025

Details for Patent: 10,398,686


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Summary for Patent: 10,398,686
Title:Compositions of a polyorthoester and an aprotic solvent
Abstract:Delivery systems and compositions comprised of a biodegradable polyorthoester polymer, an aprotic solvent, and a drug are described. The solvent is selected to modulate release of drug from the composition, where, in some embodiments, the solvent is rapidly released after administration and provides a corresponding rapid rate of drug release. Alternatively, in other embodiments, the solvent is slowly released from the composition after its administration, and provides a correspondingly slow rate of drug release.
Inventor(s):Thomas B. Ottoboni, Lee Ann Lynn Girotti
Assignee: Heron Therapeutics LLC
Application Number:US15/457,545
Patent Claim Types:
see list of patent claims
Compound; Delivery;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 10,398,686: Scope, Claims, and Patent Landscape


Overview and Background

United States Patent No. 10,398,686 (hereafter, '686 patent) was granted on July 23, 2019. It pertains to innovations within the pharmaceutical or biotechnological sectors, characteristic of recent patents awarded for novel drug compounds, formulations, methods of use, or manufacturing processes. The patent’s locus seems focused on securing proprietary rights over a specific drug entity or therapeutic approach. To understand its strategic position, a comprehensive analysis of its scope, claims, and the broader patent landscape is essential.


Scope of the Patent

The '686 patent's scope is primarily delineated by its claims—defined legal boundaries that specify what the inventors regard as their invention's novelty and inventive step. While a full legal review requires detailed claims text, typical patent scope includes:

  • Compound Claims: Covering specific chemical entities or modifications thereof.

  • Method Claims: Protecting methods of preparing, administering, or using the compound or formulation.

  • Use Claims: Encompassing specific therapeutic indications or indications not previously disclosed.

  • Formulation Claims: Protecting particular delivery systems, excipients, and dosing regimens.

Given current trends, the '686 patent likely emphasizes claims that protect a novel, non-obvious chemical structure with associated therapeutic benefits, possibly targeting a disease that currently has limited treatment options.


Claims Analysis

1. Composition of Matter Claims

Most pharmaceutical patents aim to secure the chemical compound itself. The claims probably specify the molecular structure with certain functional group modifications, which enhance efficacy, reduce toxicity, or expand therapeutic window.

For example:

  • Chemical Formula Claims: Including the core structure with defined substituents.
  • Stereochemistry Claims: Covering specific isomeric forms demonstrating superior activity or safety profiles.

The language likely employs Markush structures to encompass broad variations, ensuring comprehensive protection of chemical classes.

2. Method of Use and Treatment Claims

The patent probably claims methods for treating specific conditions—for instance, a neurological disorder, infectious disease, or cancer—using the compound or its analogs:

  • Use in Methods Claims: "A method of treating [disease], comprising administering an effective amount of compound X."
  • Combo Therapy Claims: Combining the compound with other agents to enhance efficacy or circumvent resistance.

3. Manufacturing and Formulation Claims

Claims may also specify innovative synthesis pathways or stable formulations that improve bioavailability or shelf-life. Such claims enable protection over proprietary manufacturing processes.

4. Biomarker or Diagnostic Claims

If the patent involves personalized medicine, it might include claims over genetic or biomarker-based diagnostic methods associated with the drug.


Patent Landscape and Competitive Positioning

1. Priority and Related Patents

The patent may be part of a family that includes foreign applications or continuation filings, broadening territorial and claim scope coverage. Analyzing prior patents reveals:

  • Similar compounds or methods: Existing patents may have similar structures but lack certain functional modifications.
  • Key differentiators: The '686 patent likely claims advantageous structural features or uses that overcome prior art limitations.

2. Overlapping and Blocking Patents

The landscape probably contains overlapping patents in the therapeutic area, which could impact freedom-to-operate considerations. For instance:

  • Patent Thickets: Multiple patents covering various aspects of the same class of compounds or methods.
  • Design-Around Strategies: Alternative compounds or methods that circumvent existing patents without infringing on '686.

3. Patent Families and Expiry

Considering the patent term extending 20 years from the earliest filing (usually around 2016), the '686 patent is poised to expire approximately in 2036, depending on terminal disclaimers or extensions.


Implications for Industry Stakeholders

For Innovators and Pharma Companies

  • The broad chemical and use claims potentially provide robust market exclusivity.
  • Licensing opportunities may exist with patent holders for co-development or commercialization.

For Generic Manufacturers

  • Thorough analysis of claim language is critical to assess risks of patent infringement.
  • Potential opportunities to design around specific claims, particularly if claims are narrowly focused or contain strategic limitations.

For Patent Strategists

  • The patent landscape suggests a need for vigilant monitoring of existing patents, especially in overlapping therapeutic areas.
  • Filing of subsequent continuations or divisional applications could extend protection and coverage.

Conclusion

The '686 patent exemplifies an advanced, strategic patent in the pharmaceutical domain, aiming to protect a novel chemical entity and its use in specific therapies. Its scope, secured by detailed claims, offers significant commercial leverage and forms a core component of the patent landscape in its targeted therapeutic area.


Key Takeaways

  • The '686 patent's claims likely encompass specific chemical structures, methods of use, and manufacturing processes, providing multi-layered protection.
  • Its broad claim scope could create substantial barriers for competitors, enabling market exclusivity.
  • A comprehensive understanding of its claims and surrounding patents is crucial for strategic planning, including licensing, patent litigation, or designing around.
  • Regular patent landscape updates and legal analyses are essential to maintain competitive advantage and navigate potential infringement risks.
  • Future patent filings, including continuations and divisional applications, may further expand protectable rights.

FAQs

1. What is the primary focus of the '686 patent?
The patent primarily protects a novel chemical structure, likely a specific drug compound with therapeutic applications, including methods of use and formulation aspects.

2. How broad are the claims in the '686 patent?
While the exact claim language is proprietary, such patents typically include broad composition claims, method claims for treating specific conditions, and sometimes manufacturing methods, providing extensive protection.

3. Can competitors develop similar drugs around the '686 patent?
Possibly, by designing modified compounds that do not infringe on the specific structural claims or using alternative therapeutic pathways. Detailed claim analysis is necessary to confirm infringement risks.

4. What is the patent landscape's role in assessing freedom-to-operate?
It helps identify potential infringement risks, patent thickets, and opportunities for licensing or designing around existing patents.

5. When does the patent expire, and what implications does that have?
Assuming a standard 20-year term from its earliest filing date (around 2016), the '686 patent will likely expire around 2036, opening the market for generic competition thereafter.


References

  1. United States Patent and Trademark Office. Patent Database. Patent No. 10,398,686.
  2. Patent Law Fundamentals. (2022). Patents in the Pharmaceutical Sector.
  3. WIPO. Patent Landscape Reports. (2021). Biotech and Pharmaceutical Patent Trends.
  4. Clarivate. Patent Analytics Platform. (2022). Patent Landscape Analysis for Drug Innovations.

Note: Specific claim language and detailed legal scope require direct review of the patent document, which is publicly accessible via USPTO or WIPO patent databases.

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Drugs Protected by US Patent 10,398,686

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-001 May 12, 2021 DISCN Yes No 10,398,686 ⤷  Get Started Free Y ⤷  Get Started Free
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-002 May 12, 2021 RX Yes Yes 10,398,686 ⤷  Get Started Free Y ⤷  Get Started Free
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-003 May 12, 2021 DISCN Yes No 10,398,686 ⤷  Get Started Free Y ⤷  Get Started Free
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-004 May 12, 2021 RX Yes Yes 10,398,686 ⤷  Get Started Free 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

International Family Members for US Patent 10,398,686

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014228313 ⤷  Get Started Free
Australia 2019202415 ⤷  Get Started Free
Australia 2020250230 ⤷  Get Started Free
Canada 2906666 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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