Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7516893 | Apparatus for and method of detecting a coded magnetic thread | John Buttifant, John Skinner, Peter Dilwyn Evans, Michael Potter, Barry Clifford Scowen | 2009-04-14 |
| 7434732 | Magnetic thread reader | John Buttifant, John Skinner, Peter Dilwyn Evans, Michael Potter, Barry Clifford Scowen | 2008-10-14 |
| 7063257 | Magnetic thread reader | John Buttifant, John Skinner, Peter Dilwyn Evans, Michael Potter, Barry Clifford Scowen | 2006-06-20 |