Patent Invalidation Search

Service Overview

Patent invalidation search is one of the most critical tools in patent litigation and licensing negotiations. When a patent holder asserts infringement or demands a license, the validity of the underlying patent is the first line of defense. PatseanIP's team of expert researchers conducts exhaustive prior art searches spanning global patent databases, academic literature, product manuals, and industry publications to identify documents that anticipate or render obvious the challenged claims.

Our methodology combines manual CPC/USPC classification searching with targeted keyword searches, assignee analysis, and inventor research — a multi-pronged approach that consistently uncovers prior art missed by algorithmic searches alone. We work directly with litigation counsel to ensure each report maps evidence precisely to the claim language under challenge, producing analysis that withstands rigorous scrutiny at the PTAB and in federal district courts.

Over 10,000 invalidation searches completed for Fortune 500 companies, top-tier litigation firms, and solo inventors have established PatseanIP as a trusted research partner when stakes are highest. Our reports have contributed to patent cancellations, successful IPR institutions, and favorable case settlements — measurable results that demonstrate the power of methodical, litigation-grade research.

Key Benefits

• Identifies prior art across global patent and non-patent literature

• Supports PTAB petitions, IPR filings, and court proceedings

• Reduces litigation risk and licensing costs

• Detailed claim-by-claim mapping

What You Get

Executive summary with top prior art findings ranked by relevance

Full claim-by-claim prior art mapping matrix

Annotated copies of all relevant prior art references

Database search log documenting all queries executed

Claim chart(s) for top invalidating references

Strategic recommendations for IPR / litigation use

Our Process