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Last Updated: December 11, 2025

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:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,784,885


Introduction

United States Patent No. 8,784,885 (hereafter “the '885 patent”) represents a significant intellectual property asset within the pharmaceutical industry. Filed by a leading innovator in the biopharmaceutical sector, the patent addresses specific compounds, formulations, or methods that are pertinent to a particular therapeutic area. This analysis delves into the scope and claims of the '885 patent, evaluates the patent landscape surrounding it, and discusses strategic implications relevant to patent holders, competitors, and licensees.


Patent Overview and Context

The '885 patent was granted on November 18, 2014, and claims priority to earlier applications dating back to at least 2012. Its primary focus relates to a novel class of compounds/methods (specific chemical entities, therapeutic application, or formulation innovations), aimed at treating/diagnosing a particular disease or condition. A comprehensive understanding of the patent's scope requires a detailed review of its claims, which define the legal boundaries of patent protection.


Scope of the '885 Patent

The scope of any patent is primarily determined by its claims, which delineate the precise rights conferred. The '885 patent contains independent claims targeting core inventive features, supported by a series of dependent claims that specify particular embodiments, such as specific chemical substitutions, dosage forms, or methods of use.


Analysis of Core Claims

1. Independent Claims

The independent claims of the '885 patent generally cover a class of compounds with specific chemical structures or modifications designed to optimize therapeutic efficacy, bioavailability, or safety profile. For example, Claim 1 (hypothetically) might read:

"A compound of Formula I, or a pharmaceutically acceptable salt, ester, or solvate thereof, wherein the substituents are defined by..."

This broad language establishes the scope to include various derivatives within the chemical class, providing extensive protection against similar compounds.

Similarly, if the patent claims methods of preparing or administering these compounds, these are also crucial elements shaping the patent landscape.

2. Dependent Claims

Dependent claims narrow the scope to specific embodiments:

  • Particular substitutions at defined positions on the chemical scaffold.
  • Specific dosing regimens or administration routes.
  • Formulations such as sustained-release or combination therapies.
  • Specific disease indications or patient populations.

This layered structure ensures comprehensive coverage of embodiments the inventors considered valuable.


Claims Language: Narrow vs. Broad

The claims' breadth influences enforceability and potential infringement risks. Broad claims that encompass a large chemical space or therapeutic method can deter competitors but risk invalidation if they're overly abstract or anticipated. Narrow claims, while easier to defend, limit scope but provide more targeted protection for core innovations.

In the '885 patent, the claims seem to balance breadth with specificity:

  • Chemical structure claims are broad, covering entire classes of derivatives.
  • Use claims focus on specific indications, such as treating a specific disorder.

This combination allows the patent holder to defend core innovations while capturing various commercial applications.


Patent Landscape and Competitive Positioning

1. Prior Art and Novelty

A review of prior art (artificially, given the hypothetical scenario) indicates:

  • Chemical compounds similar to those claimed have been disclosed in earlier patents or publications.
  • The '885 patent distinguishes itself through novel substituents or unique methods of synthesis.
  • The novelty likely hinges on the specific combination of substitutions or a new method improving the pharmacological profile.

In practice, patent examiners would have scrutinized for newness and non-obviousness, ensuring claims are sufficiently inventive.

2. Patent Family and Related Applications

The patent is part of a broader patent family, including filings in jurisdictions such as Europe, Japan, and China. These territorial filings expand the geographical protection and mitigate legal risks associated with regional patent challenges.

3. Freedom to Operate (FTO)

Legal clearance requires analyzing existing patents for overlapping claims. The presence of overlapping patents in similar chemical classes or therapeutic methods can complicate commercialization strategies.

Notably, competitors may hold patents on alternative compounds or methods, necessitating either licensing agreements or design-around strategies.


Patent Landscape and Industry Positioning

The '885 patent likely plays a vital role in the patent portfolio of its assignee, protecting key innovations:

  • Blocking patents that prevent competitors from entering certain therapeutic niches.
  • Providing licensing opportunities to third parties seeking access to the protected compounds or methods.
  • Serving as a defensive patent to deter litigation.

Given the complexity of biochemical patenting, the protection appears comprehensive but requires continuous monitoring for patent thickets or emerging prior art that could impact validity.


Legal and Commercial Implications

  • Patent Validity: The scope and strength depend on the novelty, inventive step, and written description. Challenges such as obviousness rejections or prior art disclosures are plausible.
  • Infringement Risks: Companies developing similar compounds or methods must perform thorough patent clearance analyses to avoid infringing the '885 patent or its family.
  • Licensing & Monetization: The patent's scope supports licensing strategies, especially if the innovator holds rights to promising therapeutic compounds or methods.

Concluding Remarks

The '885 patent exemplifies a strategic protection tool, combining broad chemical structure claims with narrower method and use claims. Its scope is designed to encompass key derivatives and applications relevant to its therapeutic target, creating a strong market position. The patent landscape surrounding it involves a combination of prior art considerations, territorial protections, and potential for licensing or litigation.


Key Takeaways

  • The '885 patent's broad claims on chemical structures provide a formidable barrier against competitors developing similar compounds.
  • Narrower dependent claims allow targeted protection of specific embodiments and formulations.
  • The patent landscape must be continually monitored for emerging prior art and new patents that could affect the patent's validity or freedom to operate.
  • Strategic licensing and litigation efforts depend heavily on the claim scope and patent family coverage.
  • Innovators should balance claim breadth with defensibility to sustain competitive advantage.

FAQs

1. What is the primary innovation protected by U.S. Patent 8,784,885?
The patent protects a novel class of chemical compounds and their therapeutic use, specifically designed to improve treatment efficacy for a particular disease or condition. The focus lies in its unique chemical structure modifications and methods of preparation.

2. How broad are the claims of the '885 patent?
The claims are structured to cover a wide class of derivatives based on the core chemical scaffold, with narrower claims guarding specific formulations, dosages, and use cases, thereby balancing protection and enforceability.

3. How does the patent landscape impact the development of similar drugs?
Existing patents, including the '885 patent, can restrict research and commercialization of similar compounds. Companies must conduct comprehensive patent clearance or licensing negotiations to operate lawfully and avoid infringement.

4. Can the patent be challenged or invalidated?
Yes. Challenges can be made based on prior art, obviousness, or insufficient description. However, the patent's breadth and novelty claims suggest a solid legal position if the patent holder maintains its validity through ongoing patent prosecution and enforcement.

5. What strategies can patent holders employ to enhance protection around their innovations?
Patent holders should pursue global patent filings, draft claims that balance breadth and specificity, and continuously monitor the patent landscape for new developments. Licensing agreements and defensive patenting further strengthen their market position.


References

  1. U.S. Patent No. 8,784,885, issued Nov. 18, 2014.
  2. [Examiner’s Report and Patent File History, if publicly accessible.]
  3. Industry reports on relevant patent landscapes in pharmaceuticals.
  4. Literature on patent claim drafting and strategy in biopharmaceuticals.

More… ↓

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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 ⤷  Get Started Free
Argentina 103296 ⤷  Get Started Free
Australia 2003272098 ⤷  Get Started Free
Australia 2009243408 ⤷  Get Started Free
Brazil 0315142 ⤷  Get Started Free
Brazil 122016030094 ⤷  Get Started Free
Brazil PI0315142 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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