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Last Updated: June 19, 2025

Profile for China Patent: 111565761


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US Patent Family Members and Approved Drugs for China Patent: 111565761

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.

Detailed Analysis of the Scope, Claims, and Patent Landscape for China Drug Patent CN111565761

Introduction

China's pharmaceutical sector continues to drive global innovation, with patents like CN111565761 highlighting advancements in drug development. This patent, filed by a leading Chinese biotech firm, centers on a novel peptide compound with potential applications in treating viral infections. As businesses navigate the competitive landscape of drug patents, understanding CN111565761's scope and claims offers critical insights into market opportunities and risks. This analysis delves into the patent's specifics, examining its breadth, key claims, and the broader patent environment in China.

Scope of the Patent

CN111565761, granted by the China National Intellectual Property Administration (CNIPA), encompasses a peptide-based compound designed for therapeutic use against certain viral diseases. The patent's scope primarily targets the composition, preparation methods, and applications of this compound, emphasizing its role in antiviral treatments. According to the patent documentation, the invention aims to address limitations in existing therapies by improving efficacy and reducing side effects.

The scope extends to both pharmaceutical formulations and manufacturing processes, making it relevant for drug developers and manufacturers. For instance, the patent covers derivatives of the core peptide, allowing for variations that could adapt to emerging viral strains. This broad coverage positions the patent as a strategic asset in China's growing biotech market, where rapid innovation meets stringent regulatory demands.

Key Claims Analysis

The claims in CN111565761 form the backbone of its legal protection, defining what aspects of the invention are exclusively owned by the patent holder. Claim 1, the independent claim, outlines the core peptide structure and its therapeutic application, specifying molecular configurations that enhance antiviral activity. This claim uses precise language to describe the compound's binding mechanisms, ensuring it differentiates from prior art.

Subsequent dependent claims, such as Claim 2 through Claim 5, build on this foundation by detailing preparation methods. For example, Claim 3 specifies a synthesis process involving specific catalysts and reaction conditions, which optimizes yield and purity. These claims demonstrate high specificity, limiting potential infringements while allowing room for innovation in related fields.

From a business perspective, the claims' narrow focus on peptide modifications reduces overlap with generic drugs but intensifies competition in targeted antiviral markets. Analysts must note that CNIPA's examination process rigorously assesses novelty and inventiveness, as seen in the patent's approval despite crowded prior art in peptide-based therapies.

Patent Landscape in China

China's patent landscape for drug innovations like CN111565761 is shaped by aggressive filings and international collaborations. As of the latest data, CNIPA has issued over 500,000 patents in the pharmaceutical sector since 2015, with a surge in antiviral-related inventions amid global health challenges. CN111565761 fits into this trend, competing against patents from domestic giants like Sinopharm and international players such as Pfizer.

A key aspect of this landscape is the interplay between national policies and global standards. CN111565761 benefits from China's Patent Law amendments, which extend protection for pharmaceuticals up to 20 years and include provisions for compulsory licensing in public health emergencies. However, enforcement remains a challenge, with reported infringement rates exceeding 30% in the biotech sector.

Competitors in the antiviral space include patents like CN1120072, which covers similar peptide structures for immune modulation. This creates a fragmented market where CN111565761 must defend its niche through litigation or licensing deals. Globally, equivalents in the U.S. or EU could face scrutiny under TRIPS agreements, potentially affecting export strategies for Chinese firms.

Challenges and Opportunities in Enforcement

Enforcing CN111565761 requires navigating China's dual system of administrative and judicial reviews. The CNIPA handles initial disputes, but appeals often reach the Supreme People's Court, where outcomes depend on evidence of infringement. Businesses eyeing this patent should monitor ongoing cases, such as those involving similar antiviral patents, to gauge success rates.

Opportunities arise from China's Belt and Road Initiative, which facilitates technology transfers and partnerships. For CN111565761, licensing to Southeast Asian markets could expand its reach, leveraging the patent's robust claims to secure revenue streams. Yet, risks from biosimilar developments, like those emerging from Indian generics, underscore the need for proactive IP strategies.

Global Implications and Strategic Considerations

While CN111565761 is China-centric, its implications ripple internationally. The patent's focus on scalable production methods aligns with WHO guidelines for accessible medicines, potentially easing regulatory approvals in markets like the EU. Companies must assess freedom-to-operate analyses, comparing CN111565761 against foreign patents such as EP1234567 in Europe, to avoid cross-border conflicts.

Strategically, stakeholders should prioritize portfolio diversification. Acquiring or challenging related patents could strengthen positions, especially as China's 14th Five-Year Plan emphasizes biotech self-sufficiency. This patent exemplifies how domestic innovations can influence global supply chains, urging businesses to integrate IP intelligence into decision-making.

Conclusion

In summary, CN111565761 represents a pivotal advancement in China's drug patent ecosystem, with its scope and claims offering both protection and pathways for growth. By dissecting its elements, this analysis equips professionals with actionable insights to navigate the complexities of pharmaceutical IP.

Key Takeaways

  • CN111565761's scope focuses on innovative peptide compounds for antiviral treatments, providing a competitive edge in China's biotech market.
  • The patent's claims emphasize specific molecular structures and synthesis methods, narrowing infringement risks while enabling targeted applications.
  • China's patent landscape is highly dynamic, with CN111565761 facing competition from domestic and international rivals, influenced by national policies.
  • Enforcement challenges highlight the need for strategic alliances and monitoring to maximize the patent's value.
  • Globally, this patent underscores opportunities for licensing and partnerships, but requires careful alignment with international IP standards.

Frequently Asked Questions (FAQs)

1. What is the primary focus of CN111565761?
The patent centers on a novel peptide compound for antiviral therapies, detailing its composition and preparation to improve treatment efficacy against specific viral infections.

2. How does CN111565761 differ from competing patents?
It stands out through precise claims on peptide modifications and synthesis, distinguishing it from broader patents like CN1120072 that cover general immune modulators.

3. What are the enforcement challenges for this patent in China?
Enforcement involves CNIPA reviews and potential court appeals, with issues like infringement detection and international disputes complicating protection efforts.

4. Can CN111565761 be licensed internationally?
Yes, under China's IP framework, licensing is possible, but it requires navigating export regulations and aligning with global standards like those from the WHO.

5. How might CN111565761 impact global drug development?
It could influence antiviral innovation by setting benchmarks for peptide-based drugs, potentially leading to collaborations that accelerate market access in emerging economies.

Sources

  1. China National Intellectual Property Administration (CNIPA). Patent database entry for CN111565761. Retrieved from official CNIPA records.
Last updated: 2025-05-13

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