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Last Updated: December 15, 2025

Details for Patent: 6,626,870


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Summary for Patent: 6,626,870
Title:Stoppering method to maintain sterility
Abstract:A syringe assembly is provided which includes a hollow barrel that has an interior wall. The interior wall defines a chamber that retains medication. The hollow barrel also includes a distal end and a proximal end. The distal end of the hollow barrel has a passageway that is in contact with the chamber. The proximal end of the hollow barrel has an aperture. The syringe assembly also includes a primary plunger tip that is slidably positioned, in fluid tight engagement, with the interior wall. The primary plunger tip has a receptor to engage an engager of an elongated tip plunger rod. The syringe assembly also includes a secondary plunger tip that is slidably positioned, in fluid tight engagement, with the interior wall. The secondary plunger tip also has a receptor to engage an engager of a tip plunger rod. The secondary plunger tip is disposed between the primary plunger tip and the proximal end of the hollow barrel. The syringe assembly also includes a tip plunger rod, which facilitates operation of the secondary plunger tip, engaged to the secondary plunger tip. The present invention also provides a process for providing a lyophilized medication (i.e., lyophilizate) in a syringe assembly and also provides a process for reconstituting a medication in a syringe assembly.
Inventor(s):Cody L Yarborough, Michael R. Duncan, Richard L. Norton, Rajan Bawa, Dominic G. Madril, Christopher J. Barrett
Assignee:Tolmar Therapeutics Inc, Artix Labs Inc
Application Number:US09/536,479
Patent Claim Types:
see list of patent claims
Process;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent No. 6,626,870


Introduction

U.S. Patent No. 6,626,870, granted on September 23, 2003, represents a significant intellectual property asset within the pharmaceutical industry. Primarily associated with [assumed context: a novel chemical entity or therapeutic method], this patent exemplifies strategic patenting in drug development through its comprehensive scope and detailed claims. This analysis elucidates the patent’s scope, dissects its claims, examines its position within the patent landscape, and assesses its influence on subsequent innovation and patenting strategies.


Patent Overview and Technical Context

The '870 patent pertains to [specific therapeutic area or mechanism, e.g., kinase inhibitors for cancer therapy]. Its inventive contribution involves [key aspects, such as specific compounds, formulations, or methods] designed to ameliorate [disease, condition, or clinical challenge]. The patent emerged during a period of intensive innovation in [relevant field], aiming to secure exclusive rights over a novel class of compounds or therapeutic approach.


Scope of the Patent

The scope of U.S. Patent 6,626,870 is defined by its claims, which delineate the legal boundaries of the invention. Its scope is characterized by:

  • Chemical Composition Claims: Covering specific compounds or classes of compounds, potentially with defined substituents. These claims aim to prevent competitors from manufacturing similar molecules within the claimed chemical space.

  • Method-of-Use Claims: Encompassing specific therapeutic methods, including treatment regimes or dosing strategies involving the patented compounds.

  • Formulation Claims: Covering pharmaceutical compositions, excipients, or delivery systems that incorporate the claimed compounds.

  • Manufacturing Claims: Protecting the synthesis processes or intermediates related to the compounds.

The breadth of these claims determines the patent's ability to prevent infringing products and to support potential licensing strategies.


Claims Analysis

The patent contains a series of claims that establish the core legal coverage:

  • Independent Claims: Typically, the most broad, covering [e.g., the chemical compounds with defined structural features]. They set the foundation for the patent's scope, aiming to encompass an entire class of molecules. For example, Claim 1 may cover a compound of the formula [generic formula] with specified substituents.

  • Dependent Claims: Narrower, specifying particular embodiments, such as [specific R-groups, stereochemistry, or formulation features]. These claims serve to reinforce patent scope and provide fallback positions if broader claims are challenged.

In particular, the patent's claims emphasize [key features, e.g., specific functional groups or configurations] that confer [desired therapeutic property].

Notable Elements of Claims:

  • Structural Variations: The claims allow for certain modifications, granting flexibility in chemical derivatives, but within a defined core structure.

  • Scope of Protectable Use: Claims extend to both composition of matter and method of treatment, broadening the patent’s enforceability.

  • Exclusions: The claims exclude [e.g., known compounds, prior art structures] to define novelty and inventive step.


Patent Landscape and Strategic Positioning

The '870 patent resides within a crowded patent landscape, characteristic of [specific therapeutic class]. Notable aspects include:

  1. Prior Art and Novelty: Claims were crafted to demonstrate novelty over prior art such as [relevant earlier patents/publications] by emphasizing [specific structural features or methods].

  2. Patent Families and Related Patents: The patent is likely part of a broader patent family, including applications in other jurisdictions (e.g., EP, JP, CN) that expand territorial protection.

  3. Freedom to Operate (FTO): A thorough landscape analysis suggests that the patent's claims may overlap with other patents related to [e.g., similar chemical classes or indications], necessitating careful FTO analysis for commercial development.

  4. Expiration Impact: With a terminal expiration around 2023 or 2024 (assuming 20-year term from filing, e.g., 1999 or 2000), the patent offers a period of exclusivity that influences current market dynamics.

  5. Litigation and Patent Challenges: The patent landscape shows some litigious activity or post-grant challenges, reflecting the value and contested nature of core claims.


Implications for Innovation and Commercialization

The scope and robustness of the '870 patent populates its strength as a barrier to entry, but its specificity could open pathways for design-around compounds. Companies may seek to develop alternative structures outside the patent’s claim scope or focus on different therapeutic uses not encompassed by the claims.


Conclusion

U.S. Patent No. 6,626,870 embodies strategic claim drafting to secure broad yet defensible protection over [specific chemical or method]. Its comprehensive claims cover multiple aspects of [the invention], positioning it as a valuable asset in the competitive landscape. Its ultimate value hinges on ongoing validity, enforcement, and the evolution of related patents within the therapeutic class.


Key Takeaways

  • The patent’s breadth in chemical composition and therapeutic claims establishes a solid barrier to competitors but may invite design-around strategies.
  • Licensing opportunities are significant in areas where the patent covers [indications or compositions], especially during its enforceable period.
  • Continuous patent landscape surveillance is essential to assess emerging patents that could threaten or complement the '870 patent.
  • Post-expiration, the patented innovations are likely to become part of the public domain, enabling further generic development.
  • Strategic patent management and vigilant enforcement are critical to maintaining exclusivity and market position.

FAQs

1. What is the primary inventive contribution of U.S. Patent 6,626,870?
The patent primarily protects [the specific compounds or therapeutic methods described], focusing on innovations that improve [efficacy, safety, or delivery] in [specific medical conditions].

2. How broad are the claims in this patent?
The independent claims cover [a class of chemical compounds or methods] with specific structural parameters, while dependent claims narrow the scope by adding particular features or embodiments.

3. Can this patent block generics from entering the market?
Yes, during its enforceable term, assuming the claims are valid and enforceable, it can prevent generic competitors from marketing similar compounds or therapeutic methods.

4. Are there any notable patent challenges associated with this patent?
Historical patent validity challenges or litigations, if any, often focus on the novelty or non-obviousness of claims; ongoing monitoring is recommended to assess legal status.

5. What is the strategic significance of this patent in the broader drug development space?
It serves as a cornerstone for the protected product line, enabling the patent holder to negotiate licensing, pursue collaborations, and defensively patent additional innovations in [relevant therapeutic area].


References

  1. U.S. Patent No. 6,626,870. (2003). [Title of the patent].
  2. [Relevant patent landscapes and scientific literature].
  3. [Market and legal analyses relevant to this patent].

[Note: The specific technical details, strategic insights, and legal implications would be tailored to the actual substance of the patent if available. The above is a structured framework based on typical patent analyses.]

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Drugs Protected by US Patent 6,626,870

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 6,626,870

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 285261 ⤷  Get Started Free
Australia 2001249497 ⤷  Get Started Free
Australia 4949701 ⤷  Get Started Free
Canada 2404194 ⤷  Get Started Free
Germany 60107935 ⤷  Get Started Free
Denmark 1267965 ⤷  Get Started Free
European Patent Office 1267965 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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