Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9279927 | Security device having optically variable device portion and method of making the same | — | 2016-03-08 |
| 9025251 | Optically variable devices, security device and article employing same, and associated method of creating same | Paul Dunn, Robert E. Renton | 2015-05-05 |
| 6316082 | Laminate structure | Thomas Anthony Bleasdale, Lynn Shona Hardie Fergusson | 2001-11-13 |
| 4917497 | Method of and apparatus for the positional detection of objects | Laurence Holden | 1990-04-17 |
| 4416695 | Hydraulic cements | Matthew C. Ball | 1983-11-22 |