A blockchain delegation framework: the first user pre-authorizes a second user by generating tokens equal to an allocated amount and sending them to the second user's data file. When an entity requests a scheduled payment from the first user, the system verifies that the second user forwarded the correct token amount — and releases equivalent data objects to the requesting entity. A smart contract encodes the delegation rules: which users are authorized, per-transfer caps, and a whitelist of permitted transfer types.
In traditional payment systems, payment delegation (giving someone authority to pay on your behalf) is handled by banks through authorized signatories, power of attorney agreements, or account sharing — all off-chain legal and contractual mechanisms. On a blockchain, a wallet owner can share a private key or a spending approval, but this creates an all-or-nothing authorization: the delegate can spend anything up to the full approved amount on anything.
The first user delegates transfer authority by generating digital tokens equal to the allocated amount and transmitting them to the second user's data file. This token pre-positioning is the delegation act — no account modification, no private key sharing, no access control change. The tokens in the delegate's file represent the authorization.
When a requesting entity submits a scheduled payment request to the first user's data file, the system validates that the second user has forwarded the correct token amount from their data file. If validated: the system releases equivalent data objects to the requesting entity — the payment is made. A smart contract at the first user's data file encodes and enforces the delegation rules: which second users are authorized, the maximum amount per transfer (cap), and which types of transfers are permitted (whitelist). Two-prong validation ensures both conditions are met: the second user is authorized AND the amount is within cap.
The delegation flow is asynchronous: the first user pre-positions tokens (the setup step) independently of when payment requests arrive. When requests come in, the second user — who holds the pre-positioned tokens — acts as the authorization intermediary. Their token forwarding is the authorization signal the system validates before releasing value.
The smart contract at the first user's data file stores three categories of delegation rules. Authorization rules define which second users are permitted to act as delegates — an identity-based whitelist. Cap rules define the maximum token amount per individual transfer — even an authorized delegate cannot exceed this limit per transaction. Type whitelist rules define which categories of transfer the delegate is permitted to execute on the first user's behalf.
The dual-prong validation — Claims 5/12/19 — requires that both the authorization check AND the cap check pass independently. A delegate who is authorized but over-cap is rejected. A transfer that is under-cap but not in the authorized user list is rejected. A transfer type not in the whitelist (Claims 6/13/20) is rejected regardless of whether the amount and authorization pass. All three rule types are enforced simultaneously before any data objects are released.
Claims 4/11/18: smart contract stores a list of authorized second-user identifiers. Only identifiers on this list can act as delegates — all others rejected at validation regardless of token amount.
Claims 4/11/18: maximum token amount per individual transfer. Even a fully authorized delegate cannot forward more than the cap in a single transaction. Prevents delegation from becoming unlimited authority.
Claims 6/13/20: enumeration of permitted transfer types. Delegate can only execute transfers whose type appears on the whitelist — subscription payments allowed, but not ad-hoc wire transfers, for example.
Claims 7/14: system checks transfer type against whitelist entries. Type must match a whitelist item — partial or category-level matching rules are defined in the smart contract's type-matching logic.
Select a scenario to trace a delegated payment through the authorization, cap, and whitelist validation chain — and see how the smart contract rules interact with the token forwarding mechanism.
Delegation of payment authority is a foundational concept in institutional finance. A corporate treasurer delegates payment authority to a finance manager for operational expenses below a certain threshold. An individual delegates recurring bill payments to a property manager. A business owner delegates payroll execution to a payroll service provider. In each case, the delegate has specific, bounded authority — not unlimited access.
US12452066B2 encodes these real-world delegation patterns as on-chain smart contract rules. The three-rule architecture — authorization, cap, type whitelist — maps directly to how institutional payment delegation actually works: who can pay (authorization), how much per transaction (cap), and what category of payment (type whitelist). The token pre-positioning mechanism makes the delegation visible and auditable on the blockchain, without requiring the delegator to be present or active at payment time.
Bank account with authorized signatories: each signatory can execute payments up to a defined limit. Authorization list (who) + cap (how much) — exact parallel to Claims 4/11/18. Now enforceable on-chain without a bank's internal access control system.
Business owner pre-authorizes payroll service to execute employee salary transfers. Type whitelist: "payroll transfers only" — the service cannot use the authorization for vendor payments or other transfer types. Claims 6/13/20 implemented in code, not contract language.
Property owner delegates utility and maintenance payment authority to a property manager. Cap: $500 per transaction. Manager can pay electric bills, not capital improvements above cap. Smart contract enforces at execution time with no owner involvement.
DAO treasury delegating operational payment authority to a multisig subcommittee. Authorization: specific wallet addresses. Cap: per-period budget. Type whitelist: operational categories only. Full governance on-chain, auditable by all DAO members.
The core value of US12452066B2 is transforming a legal and contractual concept — bounded payment delegation — into an on-chain, self-enforcing smart contract mechanism. The delegate's authority is always precisely what the smart contract says it is, enforced at execution time with no possibility of exceeding the defined bounds.
No forward citations found as of this check. US12452066B2 was granted October 2025. Citation data is still accumulating. Verify the current list on Google Patents.
US12452066B2 is the last of 34 granted patents — filed in January 2024, granted in October 2025. The portfolio spans 6 years of continuous invention activity across 7 distinct technology domains, with 4 sole-inventor patents and multiple coordinated sibling pairs filed on the same date by the same inventors.
The blockchain patents — P28 (NFT routing), P29 (token rules), P30 (token split/burn), P33 (pull-payment), and P34 (this patent, delegation) — represent the most recent cluster, reflecting a shift from infrastructure and network patents toward digital asset and distributed ledger mechanics. 13 continuation applications remain pending, suggesting the portfolio is actively growing.
Filed same day (Jan 17, 2024), same inventors. P33: pull-payment request protocol. P34: delegation authorization framework. Together they cover both sides of non-initiator-controlled blockchain transfers.
Filed same day (Apr 18, 2023), same sole inventor. P31: satellite fraud detection. P32: satellite resource transmission. Together: security + settlement for satellite-native financial infrastructure.
P24 (Edge Node Auth), P27 (Privacy Governance), P30 (Token Split/Burn), P31 (Satellite Fraud) — four patents across different technology domains, each independently conceived and prosecuted.
Continuation applications and new filings extending the portfolio into adjacent technology areas. The 34 granted patents represent the current state — not the ceiling of the portfolio.