Method and system for marking manufactured items to detect unauthorized refilling
US10068111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Jun 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for marking a manufactured item is provided, the manufactured item comprising a container and a removable closure for the container, the method comprising: generating a first code for the container, generating a second code for the closure, marking the container with the first code, and marking the closure with the second code, wherein the first code and the second code are interrelated such that at least a portion of one of the first code and the second code can be derived from the other of the first code and the second code. In an authentication process one of the first or second codes or a portion of the first or second code, in encrypted or unencrypted form, may be compared with a value derived from reading the other of the first or second code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.