How to Review an NDA Residuals and Unaided-Memory Clause

Vale, Ops at a 14-person UK SaaS, is about to treat a PE-buyer “free to use for any purpose the residuals… retained in the memory” sentence as boiler. Knowing how to review an nda residuals and unaided-memory clause is a 20-minute hunt: licence-not-skills → define unaided → exclude crown jewels → no competitive use / no IP / no portfolio leakage → conflict-check → delete / narrow / walk.

September 2026. English law; courts of England and Wales. The packet — the exact file set that will be signed — is the PE-buyer NDA (non-disclosure agreement): free to use for any purpose residuals retained in memory, including ideas, concepts, know-how or techniques; no staff-assignment limit; royalties waived. No “unaided,” no intentional-memorisation ban, no crown jewels, no “no IP licence.” Diligence queued: pricing model, top-20 cohort metrics, architecture notes. Buyer Slack: “standard residuals.” Signature Friday.

“Retained in the memory” without “unaided” is how PE people keep using what they saw after the data room closes. Venable (live 2026-09-26): a permissive “for any purpose… retained in memory” form is hard to advise a seller to agree. Vale matches that end. The hidden risk is a use permission that survives non-use.

Disclaimer: Checkory provides AI support, not legal advice. Consult a qualified lawyer for binding decisions.

Why is residuals not “general skills” — what does the licence cover?

Residuals is a use licence for remembered confidential information, not employee-mobility courtesy. Circle “notwithstanding any other provision,” “free to use for any purpose,” and “ideas, concepts, know-how or techniques.” Log “use licence — fail if framed as general skills.”

Do: treat residuals as an exception that can override non-use. Don’t: nod at “everyone keeps what they learn.” Mattersmith (UK boutique): delete first. Dentons: broad residuals can read as a royalty-free licence. GOV.UK IPO has no residuals how-to — put fences in the paper. Whole-NDA fights belong on the NDA review checklist before signing. Mutual vs one-way NDA is a different hunt — stay here.

How do you define unaided memory so notes cannot refresh it?

“Memory” alone is not “unaided memory.” Circle “retained in the memory” with no “unaided,” no intentional-memorisation ban, and no bar on consulting notes, emails, recordings, or repositories. Demand residuals only if retained in unaided memory; Receiving Party bears the burden if disputed.

Do: write unaided + intentional-memorisation ban + no consulting written or electronic CI. Don’t: assume “people can’t unlearn” fills the gap. bbrief (12 August 2026) structure (South Africa colour — not Vale’s E&W paper): never accept “unaided” undefined. Terms.Law specimens typically ban intentional memorisation. For example, Vale’s clause says “memory,” not “unaided.” Log “memory ≠ unaided — fail.”

Which crown jewels must residuals exclude before diligence?

A Highly Confidential stamp does nothing if residuals swallows “ideas, concepts, know-how or techniques” with no exclusions. Exclude trade secrets; source code; algorithms; customer lists; pricing, financial models, or cohort metrics; inventions; anything marked Highly Confidential.

Do: name the list or delete residuals for those packs. Don’t: trust a stamp alone. The UK Trade Secrets (Enforcement, etc.) Regulations 2018 are category colour worth carving out — do not invent regulation text. EveryNDA: overly broad residuals can be a walk-away. In practice, Vale’s pricing model and cohorts sit inside “know-how” unless excluded.

Why bar competitive use, deny an IP licence, and wall off portfolio companies?

“For any purpose,” a royalty waiver, and unrestricted staff assignment open competitive use and portfolio leakage. Demand: no competing products; no patent/copyright/IP licence; non-disclosure still binds; unbound portfolio companies get no residual benefit.

Do: add no-competitive-use + no IP licence + portfolio wall. Don’t: rely on “they won’t compete.” NatLawReview: best option is avoid residuals entirely. Venable PE colour (US M&A fence): people with residual information should not run unbound portfolio ops day-to-day. Vale’s package fails until narrowed. If the fight is assigning customer ideas under a SaaS feedback licence, that is a different hunt: feedback license that assigns customer ideas.

When does residuals conflict with non-solicit, non-circumvent, and survival?

A residuals exception that overrides “any other provision” can gut non-solicit, non-circumvent, and survival. Write that residuals must not override them. For employee non-solicit wording in a vendor MSA, see employee non-solicit in a vendor MSA. If residuals swallows foreground IP assignment, see background-IP licence versus foreground assignment — fence that hunt and stay here.

Do: open those paragraphs and log any clash with “notwithstanding.” Don’t: assume the later restraint wins. Mattersmith: state residuals grants no IP licence. If residual memory appears only as a destruction exception on exit, see return or destruction of confidential information on exit — not this use-licence hunt.

When do you delete, narrow, or walk before Friday’s signature?

Delete residuals when pricing, customer cohorts, architecture, or trade secrets will be disclosed. Narrow only if unaided + intentional-memorisation ban + crown jewels + no competitive use + no IP licence + portfolio wall + conflict-check all pass. Walk — do not sign Friday; do not open the data room — if “for any purpose” + undefined memory + no exclusions remain.

Success bar: a one-page log plus one Friday pause sentence (circle “free to use for any purpose the residuals” and “retained in the memory”). Workflow: licence-not-skills → define unaided → exclude crown jewels → no competitive / no IP / no portfolio → conflict-check → delete / narrow / walk. Optional: upload the same PDF to document analysis for a first-pass — first machine pass extracting clauses before a human reads every page — then a named human opens the residuals paragraph. Verify every High flag — high-severity item a named human still opens. Escalate to counsel — a qualified lawyer, not the chatbot. Never treat the paper as ready to countersign.