Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10639577 | Clogged dust filter monitor | Douglas Morris, David Daniel Walker | 2020-05-05 |
| 9061229 | Detector for clogged filters | Douglas Morris | 2015-06-23 |
| 8744780 | Detector for clogged filters | Douglas Morris | 2014-06-03 |
| 7012685 | Clogged filter detector | — | 2006-03-14 |
| 4692614 | Rotational motion fluid loop sensor using magnetically levitated detecting element | Paul E. G. Cope | 1987-09-08 |
| 4656750 | Heading sensor | Gilles D. Pitt, Philip Extance | 1987-04-14 |
| 4629892 | Optically immersed detector assembly | Ian C. Carmichael, Anthony B. Dean | 1986-12-16 |