| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Vehicle suspension arrangements | |
| #3 | Vehicle brake control systems | |
| #4 | Springs |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hawley Jesse G | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2213213A | Equalizing mechanism | |
| US2212523A | Brake | |
| US2247374A | Brake | |
| US2174243A | Brake | |
| US2116515A | Brake | |
| US2107295A | Brake lining and method of making same | |
| US2098660A | Brake | |
| US1954814A | Shock absorber | |
| US1973706A | Shock absorber | |
| CA360225A | Brake | |
| CA368624A | Brake lining | |
| CA360226A | Brake |