| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Gearing | |
| #3 | Vehicle wheels | |
| #4 | Motor vehicles | |
| #5 | Vehicle suspension arrangements | |
| #6 | Internal-combustion piston engines | |
| #7 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Campodonico John J | 14 |
| #2 | Thomas Castberg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2500308A | Multispeed gear transmission | |
| US2396456A | Multispeed gear transmission | |
| US2386541A | Multispeed gear transmission | |
| US2386540A | Multispeed gear transmission | |
| US1666526A | Traction wheel | |
| US1721769A | Traction wheel | |
| US1549293A | Transmission | |
| US1370409A | Traction-wheel | |
| US1370408A | Tractor transmission | |
| US1284057A | Transmission mechanism. | |
| US1302764A | Transmission. | |
| US1270493A | Vehicle air-cushion compressor. | |
| US1114857A | Air-compressing shock-absorber. | |
| US1120903A | Change-speed-transmission gearing. |