Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8562025 | Secure data protection optically variable labels and foils | — | 2013-10-22 |
| 7446915 | Diffuse reflector and method | Brian William Holmes | 2008-11-04 |
| 7435979 | Optical device and method of manufacture | Zbynek Ryzi, Frantisek Matejka | 2008-10-14 |
| 7358513 | Optical device and method of manufacture | Zbynek Ryzi, Frantisek Matejka | 2008-04-15 |
| 7251077 | Diffuse reflector and method | Brian William Holmes | 2007-07-31 |
| 7054042 | Optically variable security device | Brian William Holmes, Ralph Kay | 2006-05-30 |
| 6822769 | Security device | Brian William Holmes | 2004-11-23 |
| 6712399 | Security device | Marianne Michelle Anton, Ralph Kay | 2004-03-30 |
| 6369919 | Holographic security device | Brian William Holmes | 2002-04-09 |
| 6089614 | Security device | Paul Howland, Brian William Holmes | 2000-07-18 |
| 5712731 | Security device for security documents such as bank notes and credit cards | Philip Hudson | 1998-01-27 |
| 5694229 | Holographic security device | Brian William Holmes | 1997-12-02 |
| 5483363 | Security device | Brian William Holmes, David Ezra, Jon Andreassen | 1996-01-09 |