Invalidity / Validity Search
Find the reference that kills a claim — or confirm it survives — for opposition, litigation or licensing leverage.
Use it when: Defending against an asserted patent, preparing an opposition / re-exam, due diligence, or pressure-testing your own grant.
The job, done properly
Invalidity work rewards stubbornness more than speed. I take the asserted claims, break them into elements, and hunt for prior art dated before the priority date that reads on every element — across patents and non-patent literature, and in multiple jurisdictions and languages where the family runs deep. The output is built to be handed straight to counsel or an expert.
- Claim-element breakdown of the target claim(s)
- Best prior-art references with a preliminary element-by-element mapping (claim chart)
- Priority/effective-date verification for each reference cited
- Non-patent literature (journals, standards, manuals, product catalogues) where relevant
- Documented strategy log so counsel can defend how the art was found
From brief to deliverable
Brief & scope
You share the target and jurisdictions; I confirm what's in scope, the price and a realistic date.
NDA
Your NDA and conflict-clearance signed before any confidential detail changes hands.
Search & log
Classification-led search with the full, reproducible strategy log captured as I go.
Deliver
Report in your template, plus one round of refinement on the findings.