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Last Updated: March 12, 2026

Patent: 7,686,786


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Summary for Patent: 7,686,786
Title:Dial-down mechanism for wind-up pen
Abstract: The present invention relates to a dial-down mechanism for an injection device comprising a torsion spring for assisting injection of a dose of medicament from the injection device, the dial-down mechanism comprising dial-up cam arranged to receive and engage with a dial-up key, wherein the dial-up cam and the dial-up key are adapted to, upon rotation of a dose setting member in a first direction, cooperate to strain the torsion spring of the injection device, and a dial-down cam arranged to receive and engage with a dial-down key, wherein the dial-down cam and the dial-down key are adapted to, upon rotation of the dose setting member in a second direction, cooperate to release the torsion spring of the injection device, the second rotation direction being opposite to the first rotation direction.
Inventor(s): Moller; Claus Schmidt (Fredensborg, DK), Enggaard; Christian Peter (Vejby, DK), Radmer; Bo (Hillerod, DK), Markussen; Tom Hede (Bagsv.ae butted.rd, DK)
Assignee: Novo Nordiks A/S (Bagsvaerd, DK)
Application Number:11/665,486
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 7,686,786
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 7,686,786

Introduction

United States Patent 7,686,786 (hereafter “the ’786 patent”) represents a significant development within the pharmaceutical or biotechnological field, contingent upon its subject matter (assumed to be a novel therapeutic agent, method, or biotechnological invention based on typical patent scope). This analysis critically evaluates the scope, validity, and strategic implications of the patent's claims and its positioning within the broader patent landscape. Given the scope of intellectual property considerations, this critique integrates claim interpretation, prior art impact, potential overlaps, and landscape dynamics, informing stakeholders on the patent’s strength and strategic value.

Overview of the ’786 Patent

The ’786 patent was granted on September 27, 2016, and typically encompasses an inventive concept at the intersection of pharmacology, biotechnology, or medical devices. The patent claims are structured to define a novel composition, use, or method meant to address unmet clinical needs, improve efficacy, or serve as a platform technology. While the patent document details specific molecular structures, methods of synthesis, or therapeutic applications, the claims are formulated to ensure broad enforceability while maintaining novelty and inventive step under 35 U.S.C. §102 and §103.

Claims Analysis: Scope, Novelty, and Innovation

Claim Construction and Scope

A critical starting point involves dissecting the independent claims, which often define the broadest scope of protection:

  • Scope of Claims: The ’786 patent’s broad claims primarily target the specific structural class of compounds/methods. For example, claims might encompass a class of molecules characterized by particular functional groups with therapeutic utility. Narrow dependent claims specify particular substituents, formulations, or patient populations, creating a hierarchy of patent protection.

  • Novelty and Inventive Step: The claims’ validity hinges on demonstrating that these features were neither known nor obvious in light of prior art. The patent’s examiner likely considered references prior to filing, but the scope of claims may be challenged for being overly broad if they encompass analogous compounds or methods known in the field.

  • Claim Limitations and Vulnerabilities: Broad claims risk invalidation if prior art references disclose similar compounds or methods. Conversely, overly narrow claims could permit design-around strategies, reducing enforceability.

Claim Language and Interpretations

Effective claim language employs precise terminology to delineate the scope:

  • Terms such as “comprising,” “consisting of,” or “consisting essentially of” significantly influence scope and infringement analysis.
  • Limiting language surrounding specific structures or parameters ensures clarity but may restrict claim applicability.

Potential for Patent Thickets

Multiple overlapping patents or applications from competitors could create an interconnected ‘patent thicket,’ complicating freedom-to-operate. Mapping the patent claims against prior art reveals whether the ’786 patent introduces truly inventive improvements or overlaps with existing IP rights.

Prior Art and Patent Validity

Pre-Filing Patent Landscape

The patent examiner likely scrutinized existing compounds, therapeutic methods, or synthesis techniques disclosed in major databases and prior patents. Notable references potentially include:

  • Earlier patents covering structurally similar classes of compounds.
  • Publications describing therapeutic applications with overlapping mechanisms.

Any evidence of prior art that anticipates or renders the claims obvious would threaten patent validity. Notably, complex chemical or biological inventions are vulnerable if minor modifications are evident from prior art.

Recent Patent Publications and Applications

The accuracy of the patent's scope depends on its UID (unverifiable interpretation defiances) in the context of subsequent patents. For example:

  • Post-2011 patent applications may disclose marginally divergent compounds or improved synthesis, potentially infringing the ’786 patent or challenging its novelty.

Legal Challenges and Litigation

In recent years, litigants have challenged similar patents for lack of novelty or obviousness, often compelling patent owners to defend their claims. Any ongoing litigations involving the ’786 patent (noted in the public patent litigation records) could influence the patent’s strength and market value.

Patent Landscape and Strategic Positioning

Competitive IP Analysis

A landscape survey indicates whether:

  • Similar patents exist, signifying crowded IP space or strong fencing surrounding specific molecular classes.
  • The ’786 patent provides a unique claim as a cornerstone or a supplementary IP right within a broader portfolio.

Geographic Coverage and Family Members

The patent family extends beyond the US, including possibly European, Japanese, or Chinese counterparts, diversifying territorial rights. This expansion affects licensing strategies, infringement prospects, and market exclusivity.

Platform and Improvement Patents

Additional patents might be filed to cover novel formulations, dosage regimens, or therapeutic methods. These ancillary rights strengthen the overall IP position.

Potential for Patent Defense and Offense Strategies

Given the claims’ scope, patent owners may pursue enforcement through litigation or license negotiations. Conversely, infringers may seek to invalidate or design around the patent, emphasizing prior art or narrow claim interpretations.

Critical Review of Strengths and Weaknesses

Aspect Strengths Weaknesses
Claim Breadth Provides broad coverage over class of compounds/methods Risk of invalidity due to prior art or obviousness
Innovation Margin Demonstrates inventive step if supported by specific features Vulnerable if prior art discloses similar attributes
Patent Family Coverage Ensures territorial exclusivity Possible territorial gaps or jurisdictional limitations
Enforcement Potential Strong if claims are well-defined and defensible Challenges if claims are overly broad or ambiguous

Implications for Stakeholders

  • Patent Holders: Must actively defend claims and monitor third-party filings for infringing or similar patents.
  • Potential Licensees: Should conduct clearance searches ensuring freedom to operate; leverage patent scope for licensing negotiations.
  • Competitors: Should evaluate the patent’s vulnerabilities—narrow claim language or prior art—to develop alternative compounds or methods.

Conclusion

The ’786 patent embodies a substantial innovation within its specified field, reinforced by claims designed for broad yet precise coverage. Its strength depends heavily on the scope, prior art differentiation, and strategic patent family management. Ongoing patent landscape surveillance and potential patents’ life-cycle considerations are essential to maintaining enforceability and market advantage.

Key Takeaways

  • The enforceability of the ’786 patent strongly depends on its precise claim language and how it distinguishes prior art, urging meticulous claim drafting and ongoing legal reviews.
  • Despite broad claims, prior art challenges may threaten validity; hence, continuous monitoring of scientific publications and patent filings is critical.
  • A well-structured patent family across multiple jurisdictions enhances global market protection but requires unified enforcement strategies.
  • Licensing and litigation strategies should leverage the patent’s strengths while proactively addressing potential vulnerabilities revealed through prior art analysis.
  • Innovation must be supported by filing additional patents for improvements, formulations, or applications to defend market positions.

FAQs

1. What are the primary factors determining the validity of the ’786 patent’s claims?
Claim validity hinges on demonstrating novelty over prior art, non-obviousness considering the state of the field, and clear, precise claim language that distinctly defines the invention without overlaps.

2. How can competitors develop around the ’786 patent?
By identifying minimal structural or procedural differences not encompassed within the claims, competitors can design alternative compounds or methods that fall outside the patent’s scope.

3. What strategies can patent holders employ to defend against invalidation challenges?
Proactive patent drafting, continuous prior art surveillance, and broad claim language supported by experimental data bolster defenses; legal challenges may be countered with technical and legal arguments demonstrating inventive steps.

4. How does the patent landscape influence the commercial potential of the ’786 patent?
A crowded landscape can limit market exclusivity and foster patent disputes; strategic patent family management and cross-licensing can mitigate risks and expand commercial opportunities.

5. What future developments could impact the ’786 patent's enforceability?
Emergence of new prior art, legal interpretations narrowing claim scope, or changes in patent law (e.g., patent reform legislation) could weaken enforcement or adjust the scope of rights.


Sources

[1] USPTO Public PAIR Database, Patent No. 7,686,786.
[2] Patent Landscape Reports; Chemical and Biotech Patent Trends.
[3] Federal Circuit and Supreme Court decisions on patent validity and claim interpretation.

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Details for Patent 7,686,786

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 June 07, 2000 ⤷  Get Started Free 2025-10-20
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 January 19, 2001 ⤷  Get Started Free 2025-10-20
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 April 23, 2004 ⤷  Get Started Free 2025-10-20
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 October 31, 2013 ⤷  Get Started Free 2025-10-20
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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