Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7315253 | Security device and transponder | Stefan Alexander Pijanowski, Peter Antony Farrar, Anthony Henry Joseph Fraser, Robert Johnston, Ross Peter Jones | 2008-01-01 |
| 6595419 | Shielded magnetic reading devices | Richard Doyle | 2003-07-22 |
| 6491221 | Security documents | David Arnold, Michael John Abrams | 2002-12-10 |
| 6486655 | Magnetic position sensing techniques | — | 2002-11-26 |
| 6371379 | Magnetic tags or markers | Andrew Dames | 2002-04-16 |
| 6369965 | Magnetic interrogation techniques | Andrew Dames | 2002-04-09 |
| 6230972 | Magnetic reading devices | Andrew Dames, Alexander W. McKinnon | 2001-05-15 |
| 6204766 | Multi-layer magnetic tag | Christopher John Coggill | 2001-03-20 |
| 6076007 | Surgical devices and their location | Mark England, Andrew Dames | 2000-06-13 |
| 6054924 | Magnetic markers | Andrew Dames | 2000-04-25 |
| 5965214 | Methods for coding magnetic tags | Christopher John Coggill | 1999-10-12 |
| 5459451 | Electronic article surveillance system with enhanced geometric arrangement | Andrew Dames | 1995-10-17 |
| 5414410 | Method and system for detecting a marker | Daffyd G. Davies, Andrew Dames | 1995-05-09 |
| 5208580 | Security tag attachment | — | 1993-05-04 |
| 5049856 | Antipilferage systems | — | 1991-09-17 |
| 4999609 | Antipilferage tags having an acoustic resonator chamber | — | 1991-03-12 |
| 4992776 | Antipilferage tags and their use | — | 1991-02-12 |
| 4940966 | Article detection and/or recognition using magnetic devices | Robert M. Pettigrew, Stephen H. Chambers, Dafydd G. Davies | 1990-07-10 |