| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 16 | |
| #2 | Austria | 9 | |
| #3 | Germany | 6 | |
| #4 | France | 3 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Optics | |
| #3 | Basic materials chemistry | |
| #4 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Photosensitive materials | |
| #3 | Devices for applying fluent materials | |
| #4 | Goods for writing upon | |
| #5 | Coating compositions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nationalunternehmen Koh-I-Noor | 8 |
| #2 | Hardtmuth Koh-I-Noor Bleistift | 5 |
| #3 | Hardtmuth Koh-I-Noor-Bleistift | 3 |
| #4 | Emil Podhola | 3 |
| #5 | Votruba Adalbert | 1 |
| #6 | Schramm Karl | 1 |
| #7 | Kropsch Dr Richard | 1 |
| #8 | Robert Kaufhold | 1 |
| #9 | Ceske Budejovice | 1 |
| #10 | Watzlawik H Emil | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE737818C | Filler pencil with a tip body that can be moved through a pressure cap and a lead guide tube | |
| DE683467C | Mechanical pencil | |
| DE683667C | Pen holder with a nib holder that can be lowered into the holder shaft | |
| DE702357C | Holding device for pencil groups |