Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7591592 | Journal | Thomas Mullen | 2009-09-22 |
| 6938964 | Wheel | Nicholas Flood, Thomas Mullen | 2005-09-06 |
| 6910742 | Wheel | Nicholas Flood, Thomas Mullen | 2005-06-28 |
| D470452 | Wheel | Nicholas Flood, Thomas Mullen | 2003-02-18 |
| 5935493 | Method for blow-moulding | Nicholas Flood | 1999-08-10 |
| 5863489 | Method of blow-moulding | Nicholas Flood | 1999-01-26 |
| 4747131 | Dial tone detector | — | 1988-05-24 |
| 4694482 | Digital tone detector | Gordon J. Reesor, Zbigniew B. Styrna | 1987-09-15 |
| 4669114 | Digital tone detector | Gordon J. Reesor, Zbigniew B. Styrna | 1987-05-26 |
| 4540854 | Subscriber line interface circuit | — | 1985-09-10 |
| 4472608 | Subscriber line interface circuit | — | 1984-09-18 |
| 4410766 | Power saving line circuit | — | 1983-10-18 |
| 4376875 | Keyless and indicatorless local telephone switching system | — | 1983-03-15 |
| 4321431 | Trunk circuit with single coupling transformer | Michael C. J. Cowpland, Raymond J. Whitbread | 1982-03-23 |
| 4281219 | Telephone line circuit | Michael C. J. Cowpland | 1981-07-28 |
| 4273965 | Tone decoding circuit | Michael C. J. Cowpland | 1981-06-16 |
| 4245214 | Switching matrix | — | 1981-01-13 |
| 4182936 | Transformerless trunk circuit | Michael C. J. Cowpland, Raymond J. Whitbread | 1980-01-08 |