Patent Ledger
What is your patent worth?
Get a transparent, directional value estimate for any US patent — built from
public USPTO data, with a full breakdown of the reasoning behind the number.
How it works
Citation impact
How often later patents cite this one, normalized by age.
Legal vitality
Whether maintenance fees are current and how much term remains.
Portfolio breadth
Family size and independent claim count.
Ownership signal
Large company vs. small entity vs. individual assignee.
This tool produces directional estimates from public data for portfolio triage
purposes. It is not a certified patent appraisal and should not be the sole basis
for a licensing, sale, financing, or litigation decision.