Design Pattern · September 2026
Negative know-how ledger
Preserve failed approaches and the conditions that make them fail before the lesson leaves with a person or project.
Under the pillar IP in a World of Abundant Intelligence
Record
Name the failed approach, setting, evidence, cause, boundary conditions, cost, risk, and later design decision it changes.
Value
Estimate time, money, harm, or regulatory trouble avoided by knowing not to repeat the path.
Control
Decide whether the lesson is public, patent material, confidential know-how, or a restricted operating record.
Stop
Do not preserve folklore. Keep evidence and uncertainty attached to the failure claim.
Put this to work
Negative know-how ledger application record
Apply Negative know-how ledger to a real piece of work and record what happened.
- For
- Founders, product owners, inventors, and counsel preparing an initial rights discussion.
- What you keep
- A negative know-how ledger application record you can review, revise, and send.
- What counts as sound
- Names a real setting
- Shows the work before and after
- Records exceptions
- Uses an observable result
- Ends with keep, revise, or stop
This is a research screen, not legal advice or a patentability opinion.
Nothing entered here is stored or sent. Review the prompt before sharing confidential, personal, patient, or privileged information.
Review the prompt
You can leave any field blank. The prompt will mark it as not provided.
If the record survives your review, send the question, evidence, unknowns, and requested next step.