| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | United Kingdom | 5 | |
| #3 | United States | 5 | |
| #4 | Austria | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Couplings | |
| #3 | Unspecified technologies | |
| #4 | Shafts | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sargent William Durham | 18 |
| #2 | William Durham Sargent | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA86393A | Brake shoe manufacture | |
| GB190303767A | Improvements in Brake Shoes and in the Manufacture of the same. | |
| CA78136A | Brake shoe | |
| CA77353A | Brake shoe | |
| CA77966A | Brake shoe | |
| CA72613A | Coupling device | |
| US682644A | Coupling device. | |
| US673178A | Coupling device. | |
| CA67232A | Brake shoe | |
| GB190003376A | Improvements in Brake Shoes. | |
| US643734A | Brake-shoe. | |
| US686344A | Brake-head. | |
| US629395A | Bearing. | |
| GB189718110A | Improvements in Brake Shoes. | |
| GB189605374A | Improvements in Brake Shoes for Railway and Tramway Vehicles. | |
| GB189413763A | Improvements in Brake Shoes. | |
| CA48250A | Brake shoe |