Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800163 | Method of constructing a filter screen | Gordon James Cook, Andrew Hughes, George Charles Hartnup, Dugald Stewart | 2004-10-05 |
| 6759000 | Method of making a filtering screen and support frame therefor | Gordon James Cook, Andrew Hughes, George Charles Hartnup, Dugald Stewart | 2004-07-06 |
| 6713190 | Reinforcement for a moulded filtering screen support frame | Gordon James Cook, Andrew Hughes, George Charles Hartnup, Dugald Stewart | 2004-03-30 |
| 6692599 | Filtering screen and support frame therefor | Gordon James Cook, Andrew Hughes, George Charles Hartnup, Dugald Stewart | 2004-02-17 |
| 6675975 | Filtering screen and support frame therefor | Gordon James Cook, Andrew Hughes, George Charles Hartnup, Dugald Stewart | 2004-01-13 |
| 6155428 | Vibratory screening machine | George Alexander Burnett | 2000-12-05 |