| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 18 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Unspecified technologies | |
| #3 | Machines for artistic work | |
| #4 | Hairstyling and cosmetic | |
| #5 | Fillers | |
| #6 | Certain plastics | |
| #7 | Shaping of plastics | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Most Lucifer J | 20 |
| #2 | Wilson Ralph W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2481942A | Mechanical pencil | |
| US2478123A | Eraser mounting | |
| US2329355A | Mechanical pencil | |
| US2267127A | Eraser mounting | |
| US2245805A | Mechanical pencil | |
| US2184529A | Mechanical pencil | |
| US2177839A | Mechanical pencil | |
| US2184864A | Mechanical pencil | |
| US2184863A | Mechanical pencil | |
| US2179950A | Mechanical pencil | |
| US2184528A | Mechanical pencil | |
| US2184527A | Mechanical pencil | |
| US2178803A | Die | |
| US2177838A | Mechanical pencil | |
| US1940223A | Method of producing seamless celluloid articles from bars of celluloid | |
| US1824029A | Container | |
| US1566910A | Engine-chasing machine | |
| US1395861A | Engraving-machine | |
| CA453772A | Mechanical pencil | |
| CA453773A | Mechanical pencil |