| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Denmark | 5 | |
| #3 | Canada | 4 | |
| #4 | France | 4 | |
| #5 | United Kingdom | 3 | |
| #6 | Australia | 1 | |
| #7 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Chemical engineering | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Goods for writing upon | |
| #3 | Separation | |
| #4 | Unspecified technologies | |
| #5 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vivian George Stewart | 8 |
| #2 | Stewart Vivian George | 6 |
| #3 | Small Patrick William James | 2 |
| #4 | Wyllie Derek Mclean | 2 |
| #5 | George Stewart Vivian | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB802223A | Fibrous filter medium | |
| GB780265A | Fibrous filter medium | |
| GB575641A | Improvements in filters | |
| US1923648A | Container for ink | |
| US1908384A | Reservoir fountain pen | |
| US1922831A | Fountain pen | |
| AU3036030B | improvements in and connected with fountain pens | |
| ES120465A1 | Improvements in fountain pens. | |
| US1862586A | Fountain pen | |
| US1839066A | Device for securing fountain pens and the like in pockets of clothing and the like | |
| CA331360A | Fountain pen | |
| CA336021A | Fountain pen | |
| CA330087A | Fountain pen | |
| CA332552A | Fountain pen |