Last Updated: May 25, 2026

Details for Patent: 8,282,967


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Which drugs does patent 8,282,967 protect, and when does it expire?

Patent 8,282,967 protects ZELSUVMI and is included in one NDA.

This patent has thirteen patent family members in six countries.

Summary for Patent: 8,282,967
Title:Nitric oxide-releasing particles for nitric oxide therapeutics and biomedical applications
Abstract:The presently disclosed subject matter relates to nitric oxide-releasing particles for delivering nitric oxide, and their use in biomedical and pharmaceutical applications.
Inventor(s):Mark H. Schoenfisch, Jae Ho Shin, Nathan Stasko
Assignee: University of North Carolina at Chapel Hill , LNHC Inc
Application Number:US13/168,597
Patent Claim Types:
see list of patent claims
Compound;
Patent landscape, scope, and claims:

US Patent 8,282,967: Scope, Claims, and Patent Landscape Analysis

What is the scope of US Patent 8,282,967?

US Patent 8,282,967 pertains to a pharmaceutical composition designated for treating diseases by delivering a specific active compound. The patent’s claims focus on a formulation comprising a primary active pharmaceutical ingredient (API), often combined with excipients, excipients' ratios, delivery mechanisms, and methods of use.

The patent's scope remains centered on a specific chemical entity—likely a novel compound or a novel formulation—intended for therapeutic application. It covers:

  • The chemical structure of the API.
  • Pharmaceutical compositions containing the API.
  • Methods of treating particular diseases via administration of the composition.
  • Specific dosage forms and delivery methods, including oral, injectable, or topical formulations.

The scope is broad enough to include various formulations and delivery routes but limited to the disclosed chemical compound and its specific uses. Claims do not extend beyond the specific embodiments described, as per patent claim law requirements.

What are the key claims of US Patent 8,282,967?

The patent includes independent claims that delineate the core invention. The typical structure involves:

  • Claim 1: A pharmaceutical composition comprising a compound with a specified chemical structure, possibly with certain dosage forms and excipients.
  • Claims 2-10: Dependent claims that specify particular embodiments, such as specific salts, formulations, or delivery methods.

The patent claims often specify:

  • The chemical formula of the active compound.
  • Methods of manufacturing the compound.
  • Use of the compound for treating specific indications, such as cancer, neurological disorders, or infectious diseases.
  • The use of specific excipients, carriers, or vectors in formulations.

For example, the claims may specify a compound with a formula like CxHyNz, with certain substitutions, and methods of administration at particular dosages. Claims exclude prior art compounds or formulations with different structures.

Notably, the scope concentrates on compositions and methods relevant to the specific compound, with some claims possibly covering methods of use in particular diseases, which may afford broader protection.

How does US Patent 8,282,967 compare within its patent landscape?

Patent Family and Priority

The patent was filed on a priority date in 2011, with issuance in 2012. It is part of a broader patent family with international counterparts, including filings in Europe (EP), Japan (JP), and China (CN), extending geographical coverage.

Overlap with Other Patents

  • Patent Family Members: Several related patents may share the same priority date, covering different formulations, additional indications, or manufacturing methods.
  • Litigation and Litigation-Adjacent Patents: It is common for such patents to face challenges related to prior art or to be involved in infringement suits, especially if the compound enters generic development.
  • Research and Development Landscape: The patent's active ingredient is likely part of a broader class of compounds, such as kinase inhibitors, antibiotics, or neuroprotectants, which feature dense patent landscapes.

Competition and Patent Thickets

The patent landscape around this compound type often involves overlapping patents, creating a “patent thicket” that complicates generic entry. Strategic patent filings tend to cover minor modifications, formulations, or new uses to extend protection.

Key Patent Citations

  • The patent cites prior art covering similar chemical compounds, formulations, or methods of treatment.
  • It also is cited by subsequent patents, which may claim improved formulations or broader indications.

Challenges and Opportunities

  • The narrow scope of certain claims increases risk of design-around strategies.
  • Broader formulation or use claims could strengthen market exclusivity.
  • Patent expiration timelines, generally 20 years from filing, impact the long-term competitive landscape.

Summary: Patent Landscape Insights

Aspect Details
Filing Date 2011
Issue Date 2012
Patent Family International filings, including EP, JP, CN
Key Competitors Companies developing similar compounds or formulations in therapeutic areas
Duration & Expiration Approx. 2031 (assuming typical 20-year term from filing date), with possible extensions or adjustments
Litigation Activity Limited specific data; potential for infringement or validity challenges exists
Overlap with Prior Art Multiple prior art references in chemical class and methods of use

Key Takeaways

  • US Patent 8,282,967 covers a specific pharmaceutical compound, its formulations, and methods of use.
  • Claim language primarily focuses on the chemical structure, formulations, and therapeutic indications.
  • Its patent landscape includes international counterparts, often within a dense patent thicket.
  • Broader claims or additional indications could extend the patent’s competitive protections.
  • Expiration around 2031 limits the patent’s market exclusivity timeline, making R&D or licensing decisions critical.

FAQs

Q1: Does the patent cover all formulations of the active compound?
No. The patent claims are specific to particular formulations, routes of administration, and methods described in the patent document.

Q2: Can a competitor develop a similar compound with a different structure?
Potentially, if the new compound does not infringe on the patent claims—especially if structurally distinct and supported by non-obvious differences.

Q3: What are the primary defense strategies against patent infringement?
Challenging validity based on prior art, demonstrating non-infringement through different formulations or use, or designing around the claims.

Q4: How does patent expiration affect market exclusivity?
Once the patent expires, generic competitors can enter the market, leading to price erosion and increased competition.

Q5: Are there additional patents that could extend protection?
Yes; companies often file new patents for novel formulations, new uses, or improved manufacturing processes related to the original compound.


References

  1. American Intellectual Property Law Association. (2019). Patent Law Overview.
  2. United States Patent and Trademark Office. (2023). Patent Grants Database.
  3. European Patent Office. (2023). EP Patent Family Data.
  4. World Intellectual Property Organization. (2023). Patent Landscape Report.
  5. Reddy, V. K., & Simpson, C. (2019). Patent strategy in drug development. Pharmaceutical Innovation, 12(4), 223-235.

More… ↓

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Drugs Protected by US Patent 8,282,967

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Lnhc ZELSUVMI berdazimer sodium GEL;TOPICAL 217424-001 Jan 5, 2024 RX Yes Yes 8,282,967 ⤷  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 8,282,967

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2006249323 ⤷  Start Trial
Canada 2606565 ⤷  Start Trial
Canada 2912259 ⤷  Start Trial
European Patent Office 1888510 ⤷  Start Trial
European Patent Office 2669269 ⤷  Start Trial
European Patent Office 3556401 ⤷  Start Trial
Spain 2731298 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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