| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Lifting and pushing | |
| #2 | Unspecified technologies | |
| #3 | Gearing | |
| #4 | Vehicle tyre repairing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clark Harold W | 6 |
| #2 | Bates Edmund C | 4 |
| #3 | Rodman Clarence J | 2 |
| #4 | Wiard George W | 1 |
| #5 | Bates Clement J | 1 |
| #6 | Rodman Clarence James | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1926712A | Lifting jack | |
| US1842959A | Screw jack mechanism | |
| US1926711A | Lifting jack | |
| US1736727A | Tire-rim tool | |
| US1786643A | Lifting jack | |
| US1878219A | Lifting jack | |
| US1791975A | Lifting jack | |
| US1659785A | Lifting jack | |
| US1458676A | Lifting jack | |
| US1430350A | Lifting jack | |
| US1446112A | Lifting jack | |
| US1230818A | Lifting-jack. | |
| CA289804A | Lifting jack |