| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Germany | 3 | |
| #3 | Canada | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Sweden | 2 | |
| #7 | Argentina | 1 | |
| #8 | Austria | 1 | |
| #9 | Australia | 1 | |
| #10 | Brazil | 1 | |
| #11 | Switzerland | 1 | |
| #12 | India | 1 | |
| #13 | Italy | 1 | |
| #14 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Time tables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ganz Walter C | 6 |
| #2 | Ganz W | 4 |
| #3 | Ganz Walter Carl | 2 |
| #4 | Carl Ganz Walter | 1 |
| #5 | Ganz W C | 1 |
| #6 | Walter-Carl Ganz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IT1041167B | Multiple refill writing implement - has manually operated flexible refill changer in U shaped track | |
| US3898008A | Writing instrument | |
| US3738038A | Perpetual calendar and writing instrument holder | |
| FR1414981A | Writing instrument | |
| US3266465A | Writing instrument | |
| US3164132A | Retractable multiple unit writing instrument | |
| CA808967A | Writing instrument | |
| CA814193A | Writing instrument |