| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Unspecified technologies | |
| #3 | Harvesting | |
| #4 | Hand carried bags | |
| #5 | Hand-held cutting tools | |
| #6 | Smoking accessories |
| # | Name | Total Patents |
|---|---|---|
| #1 | Perkins Richard E | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1904749A | Corn harvester | |
| US1469685A | Smoking pipe | |
| US1388598A | Razor | |
| US1369185A | Fountain-pen | |
| US1362263A | Pencil-holder | |
| US1369184A | Fountain-pen | |
| US1365191A | Fountain-pen | |
| US1365190A | Article-holder | |
| US1172482A | Locking device. | |
| CA200793A | Tobacco pipe | |
| CA200794A | Tobacco pipe |