| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 18 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Basic materials chemistry | |
| #5 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Unspecified technologies | |
| #3 | Vehicle brake control systems | |
| #4 | Aeroplanes | |
| #5 | Pistons and sealings | |
| #6 | Punching metal | |
| #7 | Lubricating compositions | |
| #8 | Gearing | |
| #9 | Special lubricating compositions | |
| #10 | Motor vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tatter John W | 19 |
| #2 | Sampson Frederick W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1890705A | Brake drum | |
| US1928956A | Brake fluid composition | |
| US1924888A | Fluid pressure operated device | |
| US1923463A | Brake operating device | |
| US1894525A | Brake | |
| US1822714A | Steering and braking device | |
| US1814576A | Steering and braking device | |
| US1925680A | Brake mechanism | |
| US1805501A | Brake band | |
| US1961435A | Brake mechanism | |
| US1837239A | Packing device | |
| US1814575A | Brake | |
| US1884374A | Leak preventing device | |
| US1884373A | Brake | |
| US1801988A | Steering control for creeper type tractors | |
| US1857413A | Fluid operated apparatus | |
| US1755525A | Brake | |
| US1814574A | Brake mechanism | |
| CA320831A | Brake band |