| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 7 | |
| #2 | Germany | 4 | |
| #3 | United Kingdom | 2 | |
| #4 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Control | |
| #3 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Teaching materials | |
| #3 | Calendars |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jahn Albert | 8 |
| #2 | Albert Jahn | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1904660A | Fountain pen | |
| GB315144A | Fountain pen | |
| US1538878A | Holder for writing implements and the like | |
| GB216676A | Improvements in holders for writing implements and the like |