| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machine tools | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Smoking accessories | |
| #2 | Writing or drawing tools | |
| #3 | Perforating | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Edwin Caldwell | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1940075A | Smoking pipe | |
| US1711487A | Machine for perforating cigarette wrappers and the like | |
| US1706398A | Smoking implement | |
| GB245463A | Improvements in or relating to tobacco pipes, cigar and cigarette holders | |
| US1612569A | Ash-tray fixture | |
| US1695533A | Pipe holder | |
| US1691564A | Smoker's novelty | |
| US1628114A | Smoker's article | |
| US1727582A | Cigar and cigarette support | |
| US1582025A | Smoker's article | |
| US1661746A | Writing pen | |
| US1676250A | Clutch pencil |