Invalidity Search

Challenge granted patents with claim focused, evidence driven prior art analysis.

A patent invalidity search aims to identify prior art that can invalidate one or more claims of a granted patent by proving lack of novelty or inventive step.

Darsh Analytics provides comprehensive patent invalidity search services to support patent litigation, opposition proceedings, licensing negotiations, and risk mitigation strategies.

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Why Conduct a Patent Invalidity Search?

Invalidity searches are critical when:

Challenging a competitor’s granted patent

Identify strong prior art that can question the validity of issued claims and strategically weaken a competitor’s patent position.

Preparing for litigation or opposition

Support legal proceedings with well‑documented prior art references and structured claim‑focused analysis.

Weakening blocking patents

Locate prior art that can reduce the scope or enforceability of patents restricting your market entry.

Defending against infringement allegations

Uncover earlier disclosures that may invalidate asserted claims and strengthen your defense strategy in potential disputes.

Evaluating licensing strength or acquisition risk

Assess the true enforceability of a patent before entering licensing negotiations or making investment decisions.

A strong invalidity search can significantly reduce legal and commercial risk.

Who Needs Patent Invalidity Search Services?

IP law firms & litigators

Support litigation strategy with claim‑focused prior art research designed to strengthen arguments and uncover invalidating disclosures.

Corporates facing infringement risk

Reduce exposure by identifying prior art that may weaken or challenge patents asserted against your products.

Companies negotiating licenses

Analyze enforceability of licensed patents to strengthen negotiation positions and avoid overvaluation risks.

In house legal teams

Evaluate enforcement risks and respond confidently to patent assertions with structured, evidence‑based invalidity analysis.

Investors conducting IP due diligence

Assess patent strength before funding, acquisitions, or strategic partnerships to avoid hidden legal vulnerabilities.

Our Invalidity Search Methodology

Darsh Analytics follows a claim centric and evidence driven approach:

Detailed analysis of independent and dependent claims.

Claim element based keywords and classifications.

Global patent databases
Non patent literature (journals, manuals, products, standards)

Identified disclosures are mapped directly to specific claim elements, highlighting how prior art impacts validity and enforceability.

Internal review to ensure litigation ready strength.

What You Receive

Strong novelty and obviousness destroying references

Carefully identified prior art references that directly challenge novelty and inventive step, strengthening your invalidity position.

Explanation of relevance for each reference

Concise explanations describing how each disclosure impacts validity and supports your strategic objectives.

Evidence suitable for legal proceedings

Documentation prepared with litigation standards in mind, ensuring reliability, traceability, and defensible analysis.

Claim wise mapping charts

Structured charts mapping each reference to specific claim elements for clear, side‑by‑side comparison and legal review.

Clear, structured invalidity report

Professionally formatted report organized for clarity, making complex prior art analysis easy to understand and use.

Reports are designed to support attorneys efficiently, providing clarity and strategy without unnecessary data overload.

Jurisdiction Coverage

United States (US)

PCT / WO

India (IN)

Europe (EP)

China (CN)

Other regions as required

Technology Domains

Software & AI

Electronics & Semiconductors

Mechanical & Industrial

Automotive & EV

MedTech & Life Sciences

Energy & Materials

Why Choose Darsh Analytics for Invalidity Search?

We prioritize powerful, claim‑destroying references rather than overwhelming reports with unnecessary or weak citations.

Claim focused, litigation oriented analysis

Every search begins with detailed claim interpretation to ensure prior art is aligned precisely with legal arguments and enforcement strategy.

Attorney ready claim charts

We deliver structured claim charts that clearly map disclosures to claim elements, simplifying legal review and courtroom preparation.

Global prior art coverage

Comprehensive searches across international patent databases and relevant non‑patent literature ensure thorough evidentiary support.

Experienced invalidity search specialists

Our analysts combine technical domain expertise with litigation‑focused research experience for precise, defensible results.

Strict confidentiality & NDAs

All projects are handled under secure processes with full confidentiality, protecting your legal strategy and sensitive information.

Challenging a Granted Patent?

Strengthen your legal and commercial position with a robust invalidity search.

Request an Invalidity Search Quote

A patent invalidity search identifies prior art that can invalidate claims of an already granted patent.

Before litigation, opposition, licensing negotiations, or when facing infringement risks.

Patents, published applications, journals, product manuals, standards, and other public disclosures.

Yes, we provide detailed claim‑wise mapping as part of invalidity search deliverables.