| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Agriculture | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Crop agriculture | |
| #3 | Electrical vehicle propulsion | |
| #4 | Vehicle wheels | |
| #5 | Vehicle tyre repairing | |
| #6 | Shafts | |
| #7 | Animal care | |
| #8 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Barton Delbert E | 12 |
| #2 | Spence James H | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1038508A | Sleet-cutting trolley. | |
| US1085318A | Trolley. | |
| US850512A | Snap-hook. | |
| CA94008A | Snap hook | |
| US818340A | Hub. | |
| US798005A | Hub and axle. | |
| US785538A | Snap-hook. | |
| US703368A | Self-locking springless hook. | |
| US680110A | Wheel box and axle. | |
| US670093A | Cultivator. | |
| US668124A | Cultivator. | |
| US687191A | Sulky-plow. |