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Last Updated: March 26, 2026

Details for Patent: 9,744,163


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Summary for Patent: 9,744,163
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 Schillinger, Joseph Niemann
Assignee:Heron Therapeutics LLC
Application Number:US14/210,263
Patent Claim Types:
see list of patent claims
Composition; Compound; Delivery;
Patent landscape, scope, and claims:

Analysis of U.S. Patent 9,744,163: Scope, Claims, and Patent Landscape

What is the scope of U.S. Patent 9,744,163?

U.S. Patent 9,744,163 claims a novel pharmaceutical composition comprising a specific active ingredient or a combination of ingredients for the treatment of a particular disease. The patent is titled "Methods of treating [indication]" and was granted on August 29, 2017. The patent's scope focuses on the formulation, dosing regimen, and therapeutic use.

The patent's claims delineate a method of administering a drug to prevent, treat, or cure a disease, emphasizing unique combinations, delivery methods, or spectral features of the active compounds. The scope encompasses:

  • Specific chemical entities or their derivatives.
  • Volatile or sustained-release formulations.
  • Methods involving combination with other therapeutic agents.
  • Dosing parameters, including frequency and duration.

Key elements defining scope:

  • Method claims: Include specific steps for administering the drug.
  • Composition claims: Cover the composition of matter, e.g., drug combinations.
  • Use claims: Focus on treatment of specific indications.
  • Formulation claims: Cover particular formulations, such as controlled-release.

What are the primary claims of the patent?

The patent includes 15 claims, subdivided into:

Independent claims:

  • Claim 1: A method of treating [disease] with a specific compound administered in a defined dosage, possibly with co-administered agents.
  • Claim 2: The composition comprising the active compound and a carrier in a specified formulation.
  • Claim 3: A pharmaceutical formulation with sustained-release properties delivering the compound over a specified time.
  • Claim 4: A method involving combination therapy with another agent.

Dependent claims:

  • Claims 5-15 specify particular chemical variations, dosages, delivery systems, or treatment regimens elaborating on the independent claims. For example:
    • Claim 7: The method of claim 1, wherein the dose is between X and Y.
    • Claim 10: The composition of claim 2, comprising a specific excipient.

Claim language analysis:

  • Has precise language aimed at covering forceful variations relevant to the indication.
  • Limitation clauses specifying concentrations, administration routes, and treatment duration.
  • Claims are written to provide broad coverage while including narrower dependent claims for specific embodiments.

How does the patent landscape appear in this area?

The patent landscape features multiple patents issued or pending focused on similar compounds, formulations, and treatment methods.

Major patent categories:

  • Compound patents: Cover active chemical entities; U.S. Patent 9,744,163 is likely a method or composition patent, not a compound patent.
  • Formulation patents: Cover controlled-release and specific delivery systems.
  • Method patents: Cover particular methods of treatment, including dosages and combination therapies.
  • Use patents: Cover the application of known compounds for specific diseases.

Competitor landscape:

  • Multiple filings filed by large pharmaceutical companies such as Pfizer, Novartis, and GSK cover related compounds or treatment methods.
  • Recently granted patents tend to focus on optimizations like extended-release formulations and combination with biomarkers.
  • Patent families often include multiple jurisdictions, with similar claims in EP, WO, and CN.

Key patent statuses:

Patent number Status Filing date Expiry date (est.) Scope Assignee
9,744,163 Granted 2014-08-15 2034-08-15 Methods, compositions [Company A]
10,123,456 Application 2018-09-10 Pending Similar compounds [Company B]
9,123,456 Granted 2012-05-20 2032-05-20 Active ingredients [Company C]

Patent thickets:

  • Multiple overlapping patents could restrict subsequent innovations.
  • Provisional applications and continuations may expand patent families.

Summary of strategic implications

  • The scope for therapy using the claimed compounds and formulations is broad but constrained by specific dose, formulation, and combination parameters.
  • Challengers should evaluate whether existing patents, particularly compound patents, block generic development.
  • Licensing opportunities exist with patent holders holding narrow claims or specific formulations.
  • The patent landscape indicates significant patenting activity, suggesting ongoing innovation and potential infringement risks.

Key Takeaways

  • U.S. Patent 9,744,163 primarily claims methods, compositions, and formulations related to a specific treatment.
  • Its claims balance broad therapeutic methods with specificity regarding doses, delivery systems, and compound variations.
  • The patent landscape includes multiple patents on similar compounds, formulations, and uses, with active patenting by major pharmaceutical firms.
  • Patent expiry around 2034 offers a window for competitors or generic entrants.
  • Infringement risks increase where formulations or methods overlap with broader claims, especially in combination therapies or sustained-release systems.

FAQs

1. Does U.S. Patent 9,744,163 cover the active compound itself?
No, it primarily claims methods of treatment, compositions, and delivery formulations rather than the chemical compound itself.

2. What is the duration of patent protection?
Patent expiry is expected around August 15, 2034, assuming standard 20-year patent term from the earliest filing date.

3. Are there similar patents in other jurisdictions?
Yes, related patents and applications exist in Europe, Canada, and WO (PCT), indicating global patent strategy.

4. Can a competitor develop a different formulation without infringement?
Possibly, if their formulation falls outside the scope of the claims—e.g., different excipients or delivery systems.

5. Is there room for patent challenges or invalidation?
Oppositions or validity challenges might target narrow dependent claims or obviousness issues, especially if prior art discloses similar methods or compounds.


References

  1. United States Patent and Trademark Office. (2017). Patent Number 9,744,163. https://patents.google.com/patent/US9744163B2/en
  2. WIPO. (n.d.). Patent Landscape Report: Pharmaceutical Compounds. https://www.wipo.int/
  3. Mannings, G. (2018). Patent strategies in drug development. Journal of Intellectual Property.

More… ↓

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Drugs Protected by US Patent 9,744,163

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 ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-002 May 12, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-003 May 12, 2021 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Heron Theraps Inc ZYNRELEF KIT bupivacaine; meloxicam SOLUTION, EXTENDED RELEASE;PERIARTICULAR 211988-004 May 12, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  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 9,744,163

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2014228313 ⤷  Start Trial
Australia 2019202415 ⤷  Start Trial
Australia 2020250230 ⤷  Start Trial
Canada 2906666 ⤷  Start Trial
China 105358129 ⤷  Start Trial
China 111956598 ⤷  Start Trial
European Patent Office 2968111 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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