Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760936 | Method and means for improving the sleeping posture of a user | — | 2004-07-13 |
| 5373929 | Coin validators | Michael Chittleborough, Alan Michael George Meeks, Peter R. Johnson | 1994-12-20 |
| 5127258 | Duplex sampling apparatus and method | Paul E. Brown | 1992-07-07 |
| 4459541 | Circuit for measuring capacitance | John Fielden | 1984-07-10 |