Increasing dissimilarity of characters disposed on an optically active article
US10706311B2 · kind B2 · utility
0Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The inventors of the present application developed novel retroreflective materials, and articles. One example of the present application is a retroreflective article, comprising a substrate and a machine-readable information disposed on the substrate, wherein the machine-readable information corresponds to a predetermined human-readable information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.