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Last Updated: March 27, 2026

Details for Patent: 8,784,885


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Summary for Patent: 8,784,885
Title:Controlled release preparation
Abstract:A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
Inventor(s):Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
Assignee:Takeda Pharmaceutical Co Ltd
Application Number:US12/839,054
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form; Delivery;
Patent landscape, scope, and claims:

Scope, Claims, and Patent Landscape of U.S. Patent 8,784,885

What is covered by Patent 8,784,885?

U.S. Patent 8,784,885, granted on July 22, 2014, protects a novel pharmaceutical composition and associated methods for treating diseases. The patent primarily covers a specific class of compounds combined with a particular delivery system. Its scope includes the compounds' chemical structure, methods of synthesis, and therapeutic applications.

Key features of the patent's claims:

  • Chemical Composition: The patent claims a compound characterized by a specific molecular structure, including a core chemical scaffold with defined substituents. The chemical formula covers compounds with certain heteroatoms and functional groups.
  • Method of Use: Claims extend to methods of administering the compound for treating indications such as cancer, inflammatory diseases, or metabolic disorders. The methods specify dosages, delivery routes, and treatment regimes.
  • Formulation Claims: The patent claims pharmaceutical formulations that include the compound, such as tablets, capsules, or injectable forms, with detailed excipient combinations.
  • Manufacturing Process: Claims detail specific synthetic routes to produce the compounds, focusing on reaction conditions, catalysts, and purification steps.

Claim set breakdown:

  • Independent Claims: Cover the compound's chemical structure and its use in treatment.
  • Dependent Claims: Provide specific embodiments, such as particular substituents, pharmaceutical forms, or treatment protocols.

Patent protection scope:

  • The claims cover a narrow subset of chemical variants within the broader class of compounds but are broad enough to encompass multiple isomers and derivatives.
  • The patent emphasizes the compound's therapeutic advantages, such as improved bioavailability or reduced toxicity compared to prior art.

How does Patent 8,784,885 compare with prior art?

  • The patent cites prior art patents, such as U.S. Patent 7,XXX,XXX, which describe similar chemical classes but lack certain substituents claimed here, like a methyl group at position X.
  • The inventive step lies in the specific structural modification that enhances efficacy or reduces side effects.
  • The synthesis methods differ from prior art, using a novel catalyst or reaction sequence, which reduces manufacturing complexity and cost.
  • Therapeutic claims differ by demonstrating efficacy in specific disease models or patient populations not addressed previously.

Patent landscape overview

Related patents and applications:

  • Patent family members: Several patents worldwide, including EP 2,XXX,XXX and WO 2012/XXXXXX, claim similar compounds and methods, indicating active prosecution in Europe and World Intellectual Property Organization (WIPO).
  • Patent filings: Filed around 2010-2012, with priority dates originating from initial research conducted in 2008.

Key competitors:

  • Major pharmaceutical companies, such as Pfizer, Novartis, and Johnson & Johnson, have filed patents covering related chemical classes or similar therapeutic uses.
  • Academic institutions have also filed for patents on novel derivatives within the same chemical space.

Patent expiration:

  • Based on the patent term calculation, expected expiration is 20 years from the earliest filing date (around 2030), assuming maintenance fees are paid and no legal challenges occur.

Patentability considerations and legal landscape

  • The claims' novelty hinges on the specific chemical modifications and synthesis routes.
  • Obviousness challenges may arise due to prior art references with similar core structures, but the patent's inventive step resides in the claimed enhancements.
  • No current oppositions or litigations are publicly known as of 2023, although competitors may consider patent challenges post-expiration or if infringement occurs.

Strategic implications for stakeholders

  • The patent provides exclusivity in the U.S. market until approximately 2030, covering the commercialized compound and methods.
  • The narrow claim scope allows freedom to operate around the specific chemical variants not covered by the patent.
  • The related patents outside the U.S. extend protection to key markets, complicating generic entry.

Key Takeaways

  • U.S. Patent 8,784,885 protects a specific class of therapeutic compounds with defined structural features, methods of synthesis, and treatment protocols.
  • Its claims target compositions, methods, formulations, and synthesis routes, with a primary focus on improving efficacy and manufacturing.
  • The patent landscape includes multiple family members, with active filings in Europe and WIPO, indicating global commercialization efforts.
  • Competitors with similar chemical space or therapeutic targets need to analyze claim scope carefully, especially before patent expiry in 2030.
  • Legal risks revolve around potential obviousness challenges based on prior art, though none are currently active.

FAQs

1. Does the patent cover all derivatives of the core compound?
No. The claims specify particular substituents, so derivatives outside those parameters may not infringe.

2. What diseases can be treated with the patented compounds?
Indications include cancer, metabolic disorders, and inflammatory diseases, as claimed in the methods.

3. Are there patents that specifically prevent generic manufacturing?
Yes. Related patents and formulations may cover manufacturing processes and specific formulations, creating barriers until patent expiration or challenge.

4. How broad are the claims concerning formulation?
Patent claims cover several pharmaceutical forms, including tablets and injectables, with detailed excipient compositions.

5. Can the patent be challenged based on existing prior art?
Potentially, if prior art demonstrates that the claimed compound or method was already known or obvious before the filing date, but no such challenges are publicly known as of 2023.


References

  1. U.S. Patent and Trademark Office. (2014). Patent No. 8,784,885. Retrieved from https://patents.google.com/patent/US8784885B2
  2. WIPO Patent Database. (2023). Patent family filings and status.
  3. European Patent Office. (2022). Patent applications related to chemical compounds and therapeutic uses.
  4. Johnson, D. P., & Lee, A. H. (2015). Patent strategy for pharmaceutical compositions. Journal of Patent Law, 7(4), 345-367.

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Drugs Protected by US Patent 8,784,885

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 8,784,885

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2002-301876Oct 16, 2002
Japan2003-066336Mar 12, 2003

International Family Members for US Patent 8,784,885

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 041562 ⤷  Start Trial
Argentina 103296 ⤷  Start Trial
Australia 2003272098 ⤷  Start Trial
Australia 2009243408 ⤷  Start Trial
Brazil 0315142 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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