Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9729748 | Multi-function printing device having light guides between printing engine and scanner for measurement of print engine or other parameters | David R. Ascroft, Simon Gray, Peter D. Fraser, John K. Mangan, Michael John Wilsher | 2017-08-08 |
| 9223271 | Determining high toner usage | David Gray, Simon Gray, Keith Morgan | 2015-12-29 |
| 9176446 | Determining media size by monitoring usage | David Gray, Simon Gray | 2015-11-03 |