Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 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 | $855,000 |
| 5127258 | Duplex sampling apparatus and method | Paul E. Brown | 1992-07-07 | |
| 4459541 | Circuit for measuring capacitance | John Fielden | 1984-07-10 |