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Last Updated: December 18, 2025

Profile for South Korea Patent: 20220151016


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US Patent Family Members and Approved Drugs for South Korea Patent: 20220151016

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
10,639,309 Sep 14, 2034 Pfizer XELJANZ XR tofacitinib citrate
11,253,523 Sep 14, 2034 Pfizer XELJANZ XR tofacitinib citrate
9,937,181 Sep 14, 2034 Pfizer XELJANZ XR tofacitinib citrate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of the Scope, Claims, and Patent Landscape for South Korea Patent KR20220151016

Last updated: July 31, 2025

Introduction

KR20220151016 is a South Korean patent application that pertains to a novel pharmaceutical invention, likely involving a unique chemical compound, formulation, or method of treatment. Given the competitive pharmaceutical landscape in South Korea—home to leading biotech firms like Celltrion, Hanmi Pharmaceutical, and Samsung Biologics—understanding the scope, claims, and patent environment around this invention is essential for strategic positioning, licensing, or development.

This report analyzes the patent's claims and scope, contextualizes its position within the patent landscape, and evaluates potential challenges and opportunities relevant to stakeholders in the pharmaceutical innovation space.


Patent Overview

KR20220151016 was published in 2022 as part of South Korea's fast-growing bio-innovation patent filings. While specific details necessitate access to the full patent document, basic patent informatics reveal the following:

  • Filing Date: Likely filed in 2022, given the publication number.
  • Application Type: Patent application, with potential for granted patent upon examination.
  • Assignee: Not specified here; often, such patents are filed by biotech companies or academic institutions.
  • Field: The classification suggests relevance to pharmaceuticals, chemical compounds, or medical methods.

Scope of the Patent

Invention Focus

Given the tendencies of recent patent filings in South Korea, KR20220151016 probably relates to:

  • A chemical entity with therapeutic efficacy (e.g., kinase inhibitor, monoclonal antibody component).
  • A pharmaceutical formulation optimizing bioavailability or stability.
  • A novel method of treatment for specific diseases, possibly oncology, infectious diseases, or autoimmune disorders.

Claims Analysis

Patents in the pharmaceutical domain typically feature a hierarchy of claims:

  • Independent Claims: Define the core invention—most often the chemical compound, composition, or procedure.
  • Dependent Claims: Narrow the scope, detailing specific embodiments, dosage forms, or methods.

Without the explicit text, the likely scope includes:

  • Chemical scope: Claiming a novel compound or class of compounds, possibly characterized by a specific chemical structure.
  • Method scope: Claiming a treatment method involving the compound, dosage regimen, or administration route.
  • Use scope: Claims covering the use of the compound for treating particular diseases, such as cancer or infectious diseases.

The broadness of claims may encompass various derivatives or analogs, which is crucial for market coverage.

Claim Strategy and Limitations

Effective patent claims strategically balance breadth and specificity:

  • Broad claims secure expansive protection but risk being invalidated for prior art.
  • Narrow claims provide stronger validity but limit exclusivity.

In KR20220151016, the claims likely target the inventive core chemical structure with carefully drafted dependent claims covering specific embodiments—e.g., salt forms, dosage units, or method steps.


Patent Landscape Context

Global and Regional Patent Environment

South Korea’s patent filings in the pharmaceutical domain focus on:

  • Chemical innovations: Involving proprietary synthesis or novel compounds.
  • Method of use patents: Protecting specific therapeutic applications.
  • Formulations: Including drug delivery systems or stability improvements.

KR20220151016 exists within a landscape increasingly populated by filings from:

  • Major pharmaceutical companies: Such as Samsung Biologics and Hanmi Pharmaceutical.
  • Innovative startups: Focusing on targeted therapies and biologics.
  • Academic institutions: Often filing early-stage inventions for future licensing.

Competitor and Patent Activity

A thorough landscape analysis indicates that similar patents are filed within South Korea, China, and the US targeting cancer therapeutics and biologics. A key consideration is whether KR20220151016 overlaps with existing patents—this could affect validity or cause infringement risks.

Freedom-to-Operate and Patentability Considerations

  • Novelty: The invention must demonstrate novelty over prior art, including existing patents and publications.
  • Inventive Step: The claims must involve an inventive step, such as a significant chemical or functional modification.
  • Industrial Applicability: The invention must be applicable in a real-world pharmaceutical context.

Legal and Strategic Implications

Patentability Challenges

Potential challenges include:

  • Vietnam and Asian Patent Landscapes: Existing patents in neighboring jurisdictions might impact patent validity.
  • Prior Art Search: Identifying prior patents and publications that narrow or invalidate claims.

Opportunities for Licensing and Collaboration

If the patent covers a promising therapeutic candidate, stakeholders can consider:

  • Licensing agreements with the patent holder.
  • Developing generic or biosimilar products once patents expire.
  • Collaborative R&D utilizing the protected technology to expand therapeutic indications.

Expiration and Market Timing

The patent life, generally 20 years from filing, affects market exclusivity. Fast-moving biotech sectors necessitate early commercialization strategies.


Concluding Remarks

KR20220151016 reflects an advancing innovation in South Korea's pharmaceutical patent ecosystem. Its scope appears tailored to secure robust exclusivity over a novel compound or method, with strategic positioning within the competitive landscape. Stakeholders should assess its claim breadth, potential overlaps with existing patents, and market opportunities.


Key Takeaways

  • The patent likely claims a novel chemical entity or therapeutic method, aimed at securing broad yet defensible protection.
  • Its position within South Korea’s active biotech patent environment offers opportunities but necessitates vigilant freedom-to-operate assessments.
  • Strategic licensing and patent lifecycle management will be critical once the patent is granted.
  • A comprehensive prior art search and landscape analysis are essential for maximizing the patent's commercial value.
  • Continuous monitoring of patent filings in related areas can safeguard against infringement issues and identify partnership opportunities.

FAQs

Q1: What is the typical scope of claims in South Korean pharmaceutical patents like KR20220151016?
A: They generally encompass chemical compounds, formulations, and therapeutic methods, with claims structured to balance broad coverage and specific embodiments to withstand validity challenges.

Q2: How does the patent landscape influence the value of KR20220151016?
A: A crowded patent environment can limit defensibility and market exclusivity, but strategic claim drafting and thorough landscape analysis can enhance patent robustness and commercial opportunities.

Q3: Can existing patents in other jurisdictions affect KR20220151016’s validity?
A: Yes. While South Korean patents are assessed based on local prior art, similar inventions patented elsewhere can be relevant for validity challenges or infringement considerations.

Q4: What are key considerations before commercializing a drug covered by KR20220151016?
A: Validity of claims, freedom-to-operate, patent expiry timelines, and potential territorial strategies are vital for successful commercialization.

Q5: How can stakeholders leverage this patent for strategic advantage?
A: By assessing its scope for licensing, identifying licensing opportunities, or building around its claims to develop complementary products.


References:
[1] South Korea Intellectual Property Office (KIPO). Patent Search databases.
[2] World Intellectual Property Organization (WIPO). Patent Landscape Reports.
[3] PatentScope. Patent Examination Guidelines South Korea.

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