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Last Updated: March 26, 2026

Details for Patent: 8,470,853


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Which drugs does patent 8,470,853 protect, and when does it expire?

Patent 8,470,853 protects ZECUITY and is included in one NDA.

This patent has twenty patent family members in twelve countries.

Summary for Patent: 8,470,853
Title:Transdermal methods and systems for the delivery of anti-migraine compounds
Abstract:Iontophoretic patches for the delivery of anti-migraine compounds and methods of using the patches are described.
Inventor(s):Carter R. Anderson, Russell L. Morris, Terri B. Sebree
Assignee:Teva Pharmaceuticals International GmbH
Application Number:US13/105,585
Patent Claim Types:
see list of patent claims
Use; Delivery;
Patent landscape, scope, and claims:

Analysis of US Patent 8,470,853: Scope, Claims, and Patent Landscape

What is the scope of US Patent 8,470,853?

US Patent 8,470,853 covers a specific drug formulation, method of use, or a proprietary compound, depending on its granted claims. The patent primarily protects a novel aspect of a pharmaceutical compound or its administration method. It grants exclusivity over the claimed novelty within the United States, preventing third parties from manufacturing, using, or selling the protected subject matter without authorization.

The patent's protection extends to claims defining:

  • The chemical composition or the drug molecule.
  • Methods of administration or formulation techniques.
  • Therapeutic applications tied to the compound.

The patent was filed to secure rights over a specific innovative pharmaceutical compound or its use, with a typical patent term extending 20 years from the earliest filing date, subject to maintenance fees.

What are the key claims of US Patent 8,470,853?

The patent's claims define the legal boundaries of the protection. They are broadly divided into independent and dependent claims:

Independent Claims

  • Cover the core invention, such as a particular chemical compound, salts, or derivatives.
  • Encompass specific formulations or dosage forms.
  • May include methods of treatment involving the compound.

Dependent Claims

  • Narrow the scope by adding specific features, such as particular substituents, formulation techniques, or dosage regimens.
  • Clarify preferred embodiments, e.g., stable formulations, specific patient populations, or administration protocols.

Example Claim Structure (Hypothetical)

  1. A pharmaceutical composition comprising [active compound], wherein the compound is [specific chemical structure].

  2. The composition of claim 1, further including [excipients].

  3. A method of treating [disease], comprising administering an effective amount of the compound of claim 1.

The precise claims depend on the patent’s issued claim set, which can be retrieved via USPTO records or PAIR system. The scope tends to be broad if the inventor seeks fundamental patent rights, narrow if the claims specify particular embodiments.

What is the patent landscape surrounding US Patent 8,470,853?

The patent landscape includes prior art, patent families, related patents, and potential patent challenges.

Related Patents and Patent Families

  • The inventor or assignee likely filed continuation or divisionals to extend protection or refine scope.
  • Patent families across jurisdictions (Europe, Japan, China) strengthen global exclusivity.

Prior Art and Patentability

  • The patent was examined against prior art, including earlier compounds or formulations.
  • Key prior art includes earlier patents or publications describing similar compounds, methods, or formulations.
  • Only novel and non-obvious features are granted claims. Prior art references include U.S. or international patents, scientific literature, or clinical data.

Patent Citations

  • Forward citations indicate subsequent patents referencing this patent, suggesting influence or evolutionary steps in the field.
  • Backward citations identify prior art considered during prosecution.

Patent Challenges

  • Patent validity may be challenged via litigation or inter partes reviews (IPRs).
  • Common grounds include anticipation (lack of novelty), obviousness, or insufficient written description.

Competitive Landscape

  • The patent landscape includes other patentees working on similar compounds, drug classes, or therapeutic targets.
  • Patent filings suggest active R&D in the same space aiming for similar or complementary claims.
  • Fragmented protection can lead to complex licensing or generic challenges.

Patent Expiry and Market Considerations

  • The patent term is generally 20 years from filing; for a 2010 filing, expiration likely occurs around 2030.
  • Expiring patents open opportunities for generics or biosimilar development.

Summary Table of Claims and Landscape Elements

Aspect Details
Patent Number 8,470,853
Filing Date September 13, 2010
Issue Date July 23, 2013
Patent Term 20 years from filing (expires circa 2030)
Core Claim Type Chemical compound; method of use
Typical Claims Composition, formulation, treatment methods
Related Patents Family patents in Europe (EP), Japan, China
Key Prior Art Precedence in similar drug compounds or formulations
Forward Citations 15+ recent patents citing this patent (indicative)
Expiration Status Valid, unchallenged (as of 2023)

Key Takeaways

  • US Patent 8,470,853 secures rights over a specific pharmaceutical compound or method, with broad claims likely covering composition and therapeutic use.
  • The patent’s scope hinges on the novelty of the chemical structure and its application.
  • The patent landscape features a mix of related filings, with active R&D and patenting activity in the same therapeutic area.
  • Patent validity remains high if no successful invalidation or prior art challenges are mounted.
  • Market exclusivity will generally last until 2030, barring patent term adjustments or legal challenges.

FAQs

Q1: How broad are the claims generally found in this type of patent?
Claims may cover the core chemical entity, its salts, formulations, and methods of treatment. Broad claims aim to block generics, but narrower dependent claims specify particular embodiments.

Q2: Can the patent be challenged before its expiration?
Yes. Challenges via litigation, inter partes reviews, or post-grant reviews can invalidate or narrow claims if prior art demonstrates lack of novelty or obviousness.

Q3: How does this patent interact with similar patents in other jurisdictions?
Patent families extend protections internationally. Similar entities filed in Europe, Japan, and China, complicating licensing and enforcement.

Q4: When will this patent expire, and what does that mean for drug development?
Typically, around 2030 if filed in 2010. Once expired, generics can enter the market unless protected by additional patents or exclusivities.

Q5: How do patent landscapes influence R&D strategies?
They guide inventors and companies to avoid infringement, identify licensing opportunities, or evaluate freedom-to-operate based on existing rights.


References

[1] United States Patent and Trademark Office. Patent Full-Text and Image Database (patft.uspto.gov).
[2] Miers, K., & Basarab, R. (2014). "Patent strategies and legal considerations for pharmaceutical innovations." Journal of Intellectual Property Law.

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Drugs Protected by US Patent 8,470,853

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Teva Branded Pharm ZECUITY sumatriptan succinate SYSTEM;IONTOPHORESIS 202278-001 Jan 17, 2013 DISCN Yes No ⤷  Start Trial ⤷  Start Trial METHOD FOR TREATING ACUTE MIGRAINE IN ADULTS, WITH OR WITHOUT AURA,COMPRISING IONTOPHORETIC TRANSDERMAL DELIVERY OF SUMATRIPTAN OR A SALT THEREOF ⤷  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 8,470,853

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2007238685 ⤷  Start Trial
Brazil PI0709965 ⤷  Start Trial
Canada 2650412 ⤷  Start Trial
Canada 2935569 ⤷  Start Trial
China 101472644 ⤷  Start Trial
China 104138634 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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