Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337440 | Recoverable article | David Ions, Philip Roland Winfield, George M. J. Gansbuehler, Sean Michael Lewington, Philip Costigan | 2002-01-08 |
| 6230746 | Recoverable article | David Ions, Philip Roland Winfield, George M. J. Gansbuehler, Sean Michael Lewington, Philip Costigan | 2001-05-15 |
| 6189575 | Recoverable article | David Ions, Philip Roland Winfield, George M. J. Gansbuehler, Sean Michael Lewington, Philip Costigan | 2001-02-20 |