| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | France | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Measurement | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Lubricating | |
| #3 | Roof coverings | |
| #4 | Unspecified technologies | |
| #5 | Measuring volume | |
| #6 | Pipes | |
| #7 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wilkinson James W | 3 |
| #2 | Franklin Frederick H | 2 |
| #3 | Fleming Wells S | 1 |
| #4 | Aldham Thomas E | 1 |
| #5 | Wicks John D | 1 |
| #6 | Wilson Steven B | 1 |
| #7 | Condon James D | 1 |
| #8 | William Morgan | 1 |
| #9 | Franklin Stanley H | 1 |
| #10 | Edward Aldham Thomas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB528058A | Improvements in and relating to lubricating systems, more particularly for internal combustion engines | |
| US2275481A | Adapter for base mounted filters | |
| US2238003A | Double mounted filter | |
| US2230241A | Conduit connection | |
| GB500433A | Improvements in oil filters | |
| US2183877A | Oil filter | |
| US2176618A | Oil indicator | |
| US2143044A | Filter appliance | |
| US2019779A | Floor drain | |
| CA378793A | Oil filter |