Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7114519 | Normally open reverse flow flapper valve | Paul Aitchison, Patrick Germain | 2006-10-03 |
| 6851255 | Normally open reverse flow flapper valve | Paul Aitchison, Patrick Germain | 2005-02-08 |
| 4576494 | Print wheel cartridge | — | 1986-03-18 |
| 4514101 | Paper thickness adjusting mechanism for impact printer | — | 1985-04-30 |
| 4453847 | Record carrier feed arrangement for a printer | — | 1984-06-12 |
| 4231674 | Clip for attaching guide rails to a frame | — | 1980-11-04 |