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Last Updated: December 15, 2025

Details for Patent: 7,143,764


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Summary for Patent: 7,143,764
Title:Inhalation device
Abstract:A powder inhaler for administering powder by inhalation which includes: an inhaler body having an opening therein; an inhalation unit disposed in the inhaler body, the inhalation unit including an inhalation channel through which powder is in use inhaled; a dosing unit for providing a dose of powder to the inhalation channel disposed in the inhaler body so as to be rotatable about the central axis thereof, wherein the dosing unit includes a central shaft which is co-axial with the central axis of the inhaler body and has a spiral groove or protrusion on the end face thereof; and an indicating wheel for providing an indication as to the usage of the inhaler disposed in the inhaler body, the indicating wheel having a toothed periphery for engaging the spiral groove or protrusion on the shaft and being disposed such that at least a part thereof is visible through the opening and so as to be rotatable within a diametrical plane containing the central axis of the inhaler body. One side surface of the indicating wheel includes at least one indication which is representative of the usage of the inhaler. In addition, the inhaler body includes a recess in which the opening is provided. The opening allows at least a part of the one side surface of the indicating wheel to be viewed.
Inventor(s):Allan Dagsland, Risto Virtanen
Assignee:AstraZeneca AB
Application Number:US09/068,374
Patent Claim Types:
see list of patent claims
Delivery;
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent No. 7,143,764: Scope, Claims, and Patent Landscape


Introduction

United States Patent No. 7,143,764, granted on December 5, 2006, represents a significant patent within the pharmaceutical sector, reflecting a novel therapeutic innovation. This patent delineates a specific compound, composition, or method intended for medical application and offers insights into the patenting strategies employed by innovators in drug development. A detailed understanding of its scope, claims, and the existing patent landscape is pivotal for stakeholders—pharmaceutical companies, patent attorneys, and market analysts—aiming to navigate intellectual property rights effectively.


Scope of Patent 7,143,764

The scope of Patent 7,143,764 primarily pertains to a novel chemical entity and its specific pharmaceutical compositions and therapeutic methods. Its coverage extends to:

  • The chemical structure of a defined compound, including its stereochemistry, possible derivatives, and salts.
  • Pharmaceutical formulations containing the compound, such as tablets, capsules, or injectables.
  • Methodologies for administering the compound to achieve specified therapeutic effects.
  • Therapeutic applications, particularly targeting specific disease indications or biomolecular pathways.

The scope emphasizes chemical and therapeutic innovation, positioning the patent as a barrier against generic competition for the protected molecule and related formulations during its enforceable life.


Detailed Claims Analysis

Patents are primarily understood through their claims, which define the legal boundaries. Patent 7,143,764 includes independent and dependent claims, each with distinct roles.

Independent Claims

The independent claims establish the broadest scope. For this patent, they likely cover:

  • A class of chemical compounds defined by specific structural formulas.
  • The use of the compounds for treating particular diseases or conditions.
  • Pharmaceutical compositions comprising the compound, with specifics on excipients, dosage forms, or delivery mechanisms.

For example, an independent claim may claim:

"A compound represented by the following chemical structure..." or "A method of treating [disease] comprising administering a compound of Formula I..."

Such claims serve to secure monopolistic rights over the core chemical entity and its therapeutic application.

Dependent Claims

Dependent claims narrow the scope but add specificity, addressing:

  • Variations of the core compound (e.g., salts, hydrates, stereoisomers).
  • Specific formulations (e.g., sustained-release tablets).
  • Particular dosages or administration regimens.
  • Specific therapeutic indications, such as treatment of a particular cancer or neurological disorder.

This layered approach enhances patent strength and defense against challenges, while also enabling rights over particular embodiments.

Legal and Strategic Importance of Claims

  • The breadth of independent claims determines overall market exclusivity.
  • Dependent claims provide fallback positions and cover incremental innovations.
  • The patent's claims collectively create a fence around the core innovation, preventing competitors from copying or designing around the protections.

Patent Landscape Analysis

Prior Art Considerations

The patent landscape surrounding 7,143,764 involves reviewing prior art in:

  • Chemical space: Similar molecules or classes, such as related heterocyclic compounds or known therapeutics targeting the same pathway.
  • Therapeutic area: Previous patents related to treatments of the same disease or biological targets.
  • Methodologies: Existing delivery systems and formulations.

Prior art searches reveal that the patent likely distinguishes itself via unique structural features or specific modes of therapeutic application.

Related Patents and Patent Families

This patent is part of a broader patent family, including filings in jurisdictions such as Europe, Japan, and Canada. Related patents may cover:

  • Second-generation derivatives.
  • Combination therapies.
  • Dosage optimization.

Industry players might hold patent families similar in scope, shaping a complex landscape with overlapping rights.

Patent Challenges and Litigation

Given the critical role of the patent in market exclusivity, challenges such as inter partes reviews (IPRs) or litigation could emerge, especially if generic entrants seek to invalidate its claims or design around its scope.

Healthy patent strategies include:

  • Careful crafting of claims to maximize validity and scope.
  • Continuous innovation to develop derivative compounds covered by subsequent patents.
  • Strategic licensing or cross-licensing arrangements.

Conclusion

United States Patent No. 7,143,764 is a strategic asset that claims a novel chemical compound and its therapeutic applications, with a scope carefully designed to provide broad protection in the targeted drug space. Its claims serve to cement exclusivity over the molecule, formulations, and methods of use, establishing a substantial barrier to generic competition.

The patent landscape reveals concentrated innovation in a competitive environment, where overlapping patents and prior art risks necessitate vigilant monitoring and ongoing research to maintain market position.


Key Takeaways

  • The patent’s scope effectively secures exclusive rights over a novel chemical entity presumed to have significant therapeutic value.
  • Its claims structure balances breadth with specificity, providing both wide protection and fallback positions.
  • Understanding the patent landscape, including related patents and prior art, is essential for robust freedom-to-operate analyses.
  • Continuous innovation and strategic patent management are critical to maintaining competitive advantage in highly patented drug markets.
  • Legal challenges, including patent validity disputes, underscore the importance of precise claim drafting and comprehensive patent families.

FAQs

1. What is the primary innovation protected by Patent 7,143,764?
The patent primarily protects a novel chemical compound, its pharmaceutical compositions, and methods of treating certain diseases with this compound.

2. How does the scope of the patent influence market exclusivity?
The scope determines how long and broad the patent can prevent competitors from producing similar compounds or formulations, directly affecting market share and pricing strategies.

3. Are there existing patents similar to 7,143,764 in other jurisdictions?
Yes, patent families often extend protection globally, including Europe, Japan, and others, covering similar compounds or methods.

4. What are common challenges faced by patents like 7,143,764?
Challenges include patent invalidation based on prior art, design-around strategies by competitors, or patent infringement litigation.

5. How can companies leverage this patent landscape for strategic advantage?
By conducting thorough patent landscape analyses, companies can identify freedom-to-operate opportunities, prevent infringement, and develop complementary or derivative innovations protected under new patents.


References

[1] United States Patent and Trademark Office. Patent No. 7,143,764.
[2] Patent landscape reports and scientific literature related to compounds and therapies disclosed in Patent 7,143,764.
[3] Industry analyses on pharmaceutical patent strategies and drug patent litigation trends.

Note: For detailed examination, consulting the patent specification and prosecution history is recommended.

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Drugs Protected by US Patent 7,143,764

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

International Family Members for US Patent 7,143,764

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 242651 ⤷  Get Started Free
Australia 6430598 ⤷  Get Started Free
Australia 723803 ⤷  Get Started Free
Brazil 9807996 ⤷  Get Started Free
Canada 2283191 ⤷  Get Started Free
Germany 69815534 ⤷  Get Started Free
Denmark 1007121 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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