| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Switzerland | 2 | |
| #3 | Germany | 2 | |
| #4 | Austria | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Hand carried bags | |
| #3 | Containers for goods storage | |
| #4 | Milling | |
| #5 | Unspecified technologies | |
| #6 | Unspecified technologies | |
| #7 | Goods for writing upon |
| # | Name | Total Patents |
|---|---|---|
| #1 | Danjczek William E | 4 |
| #2 | Giulio Gigli | 3 |
| #3 | Helmuth Riepe | 2 |
| #4 | William Emil Danjczek | 1 |
| #5 | Helmuth Ricpe | 1 |
| #6 | Richard Zuckert | 1 |
| #7 | Danjczek William Emil | 1 |
| #8 | William E Danjczek | 1 |
| #9 | Fritz Kaiser Hermann | 1 |
| #10 | Emil Watzlawik | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3234918A | Writing implement with cartridge | |
| US3089246A | Compasses | |
| US3055341A | Adjustable writing implement | |
| US3055546A | Dispensing lead containers | |
| US3020884A | Writing implement with a replaceable fluid-holding cartridge | |
| US2915041A | Writing device | |
| GB808261A | Improvements in or relating to devices for dispensing rod-like articles, particularly pencil leads | |
| US2852160A | Lead dispensers | |
| US2801613A | Lead gripping means for lead holders | |
| US2751700A | Indicators | |
| US2589917A | Grinding mill |