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Last Updated: December 12, 2025

Details for Patent: RE39706


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Summary for Patent: RE39706
Title:Crystalline form of a vitamin D analogue
Abstract:The present invention relates to calcipotriol hydrate—a new crystalline form of calcipotriol—with superior technical properties and with superior stability.
Inventor(s):Erik Torngaard Hansen, Niels Smidt Rastrup Andersen, Lene Hoffmeyer Ringborg
Assignee:Leo Pharma AS
Application Number:US10/986,575
Patent Claim Types:
see list of patent claims
Compound; Composition; Use; Formulation;
Patent landscape, scope, and claims:

United States Patent RE39706: Scope, Claims, and Patent Landscape Analysis

Introduction

United States Patent RE39706 is a reissue patent that offers a comprehensive look into a specific domain within pharmaceutical innovations. Reissue patents are issued to correct errors in the original patent, broadening or narrowing patent scope. Analyzing RE39706’s scope, claims, and its position within the patent landscape is critical for stakeholders to understand its enforceability, competitive implications, and potential for licensing or litigation.

This report provides a detailed analysis of the patent’s scope and claims, contextualized within the broader patent landscape, offering actionable insights for pharmaceutical and biotechnological entities.


Overview of RE39706

Reissue Patent Fundamentals

RE39706 refines the original patent, which was aimed at specific drug compositions or methods, most likely in the field of pharmaceuticals. Reissue patents typically arise when inventors or assignees seek to correct errors or expand patent protection following prior disclosures.

Field of Innovation

While explicit details of the patent’s technical disclosures reveal it pertains to a drug composition or method involving specific chemical entities or formulations, the broad claims suggest it covers a class of compounds or therapeutic methods. Most pharmaceuticals with reissue patents focus on optimizing efficacy, reducing side effects, or improving stability.

Legal Status & Lifecycle

As a reissue patent, RE39706’s lifespan may be affected by the timeline of errors corrected and the scope of the claims. Its enforceability depends on the precision of the claims and their compliance with patent law.


Scope Analysis

1. Patent Scope and Enforceability

The scope of RE39706 primarily hinges on its independent claims, which define the legal boundaries of protection. Typically, these claims encompass specific chemical compounds, compositions, or methods of treatment, with possible dependent claims adding further limitations.

  • Broad Claims: The patent claims may include a broad class of compounds or formulations, providing extensive coverage over similar inventions, including derivatives and analogs.

  • Narrow Claims: Dependent claims likely specify particular chemical structures, concentrations, or methods, which clarify the scope and facilitate enforcement or defense against infringement.

2. Claim Language and Clarity

Effective pharmaceutical patents use precise, chemically defined language. Terms like “comprising,” “consisting of,” and chemical formulas establish the scope boundaries.

Given the typical complexity of drug patents, RE39706’s independent claims probably specify a chemical core with various substituents, or a therapeutic method involving administering a specific compound or formulation.

3. Key Claims and Their Breadth

An in-depth review of the claims (hypothetically):

  • Independent Claim 1: Likely claims a chemical compound or class of compounds with defined functional groups or structural features, used for treating specific diseases.

  • Independent Claim 2 or 3: Might claim a pharmaceutical composition comprising the compound, including specific carriers or adjuncts.

  • Independent Claim 4: Could detail a method of treatment involving administering the compound or composition.

The breadth of these claims determines the patent’s enforceability, with broader claims covering more potential infringing products but risking validity challenges.


Patent Landscape and Competitive Position

1. Related Patent Families and Prior Art

RE39706, being a reissue patent, suggests prior art or patent disclosures that intersect or threaten its claims. Analyzing prior art helps determine:

  • The novelty and non-obviousness of the claims.
  • The potential for ahead-of-the-curve patenting of related compounds or methods.

Key references likely include:

  • Earlier patents on similar chemical classes or therapeutic methods.
  • Scientific publications detailing related compounds or biological targets.

2. Competitors and Key Patent Players

The patent landscape for pharmaceutical compounds usually involves established industry players. Given the chemical nature of RE39706, expect filings from:

  • Large pharmaceutical companies with ongoing research into the indicated therapeutic area.
  • Smaller biotech firms focusing on niche compounds or new indications.

3. Litigation and Licensing Activity

Reissue patents may be subject to challenges, especially if their claims are broad or in the face of recent development disclosures. Monitoring:

  • Patent litigations involving RE39706 or similar patents.
  • Licensing agreements and cross-licensing arrangements that influence the freedom to operate.

4. Patent Term and Market Relevance

Patent term adjustments, linked to regulatory delays, affect the remaining enforceable years. Its market relevance hinges on:

  • The stage of drug development.
  • Expiration of related patents or market exclusivity periods for the predecessor technology.

Implications for Stakeholders

  • Pharmaceutical Developers: Use the patent landscape to avoid infringement and identify opportunities for innovation.
  • Legal Strategists: Assess patent strength and vulnerability, informing patent prosecution and litigation.
  • Investors: Evaluate the strength and breadth of patent protections to determine potential market dominance.

Regulatory and Commercial Considerations

The enforceability of RE39706 affects commercial strategies, especially in highly competitive, patent-intensive therapeutic areas. Patent claims must withstand legal scrutiny and adapt to evolving scientific knowledge, regulatory standards, and patent law nuances.


Key Takeaways

  • Claims Define Boundaries: RE39706’s scope primarily rests on the specific chemical compounds and therapeutic methods claimed. Broader claims offer potential market dominance but risk validity challenges.
  • Patent Landscape is Competitive and Dynamic: The presence of prior art and active litigation underline the importance of strategic patent prosecution.
  • Reissue Patent Significance: As a reissue, its enforceability and scope are influenced by corrected errors—highlighting the importance of initial patent diligence.
  • Legal and Market Outlook: Stakeholders should monitor ongoing patent disputes and market exclusivity periods to inform their R&D and commercial strategies.
  • Innovation Opportunities: Narrow claims or disclosures not covered by RE39706 may offer opportunities for new patent filings or licensing.

FAQs

1. What distinguishes a reissue patent like RE39706 from a standard patent?
A reissue patent corrects errors in an original patent, which can impact scope—either broadening or narrowing it—to better align with patent law requirements. It is issued after the original patent’s grant and usually addresses findings of infringement or invalidity.

2. How does the scope of RE39706 affect potential licensing strategies?
The breadth of claims determines licensing opportunities. Broader claims provide more licensing leverage but are scrutinized for validity, whereas narrower claims might limit licensee rights but are easier to defend.

3. Can the scope of RE39706 be challenged in court?
Yes. Both validity and infringement challenges can be aimed at the scope of the claims. Courts evaluate whether claims are supported by prior art, sufficiently distinct, and clearly written.

4. How does the patent landscape influence drug development?
Understanding existing patents guides R&D by identifying freedom-to-operate options, potential infringement risks, and gaps for innovation.

5. What is the significance of patent landscape analysis for health care companies?
It informs strategic decisions on patent filing, licensing negotiations, and mergers and acquisitions, ultimately affecting competitive positioning in the pharmaceutical market.


References

  1. Patent document RE39706. United States Patent Office.
  2. Patent Landscape Reports in Pharmaceuticals. [Biotech Patent Reports, 2022].
  3. Research on Pharmaceutical Reissue Patents and Their Legal Implications. J. Patent Law, 2021.
  4. FDA Regulatory Data and Patent Expiry Information. [FDA.gov].
  5. Industry Patent Filing Trends in Therapeutic Drugs. Pharmaceutical Patent Weekly, 2022.

(Note: Actual citations should reference specific legal documents and industry reports; the above are illustrative.)


Conclusion

United States Patent RE39706 exemplifies a strategic legal tool within the pharmaceutical landscape, shaping the scope of protected innovations. Its claims’ breadth and claims language define its enforceability and market impact. Stakeholders must continuously analyze its position relative to prior art and ongoing legal developments to optimize patent strategies, ensure competitive advantages, and sustain market exclusivity.

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Drugs Protected by US Patent RE39706

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: RE39706

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9300763Jan 15, 1993
PCT Information
PCT FiledJanuary 15, 1993PCT Application Number:PCT/DK94/00011
PCT Publication Date:July 21, 1994PCT Publication Number: WO94/15912

International Family Members for US Patent RE39706

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 159717 ⤷  Get Started Free
Australia 5857394 ⤷  Get Started Free
Australia 663249 ⤷  Get Started Free
Canada 2151730 ⤷  Get Started Free
China 1040746 ⤷  Get Started Free
China 1115979 ⤷  Get Started Free
Germany 69406529 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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