| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 16 | |
| #2 | France | 5 | |
| #3 | Belgium | 3 | |
| #4 | Spain | 3 | |
| #5 | Italy | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Engines, pumps and turbines | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Supplying combustion engines | |
| #3 | Lubricating of machines | |
| #4 | Unspecified technologies | |
| #5 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holyoak Kenneth | 4 |
| #2 | Taylor George Blount | 1 |
| #3 | Goddon Paul James | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9610975D0 | Valve Assembly | |
| GB9520312D0 | Filter apparatus | |
| GB9515076D0 | Valve assembly | |
| GB9514512D0 | Valve assembly | |
| GB9501082D0 | Motor vehicle oil filter | |
| US4089783A | Filter | |
| GB1570385A | Filter | |
| GB1512958A | Filter | |
| GB1491463A | Filter material | |
| FR2194464A1 | Filter element esp for hydraulic fluids - is impregnated folded paper with wire mesh backing | |
| GB1389199A | Filter assembly | |
| GB1349937A | Filter element assembly | |
| ES382279A1 | Improvements in the filter sets. (Machine-translation by Google Translate, not legally binding) | |
| FR2055370A5 | Filter unit | |
| GB1324776A | Filter assemblies | |
| GB1339895A | Filter assemblies | |
| GB1325677A | Filter assemblies | |
| GB1139804A | Improvements in or relating to filters | |
| GB1093487A | Improvements in or relating to filtering devices | |
| GB1057873A | Improvements in or relating to filtering devices |