| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 44 | |
| #2 | Canada | 34 | |
| #3 | Germany | 4 | |
| #4 | France | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Forging | |
| #5 | Certain plastics | |
| #6 | Tools for connecting or disengaging | |
| #7 | Punching metal | |
| #8 | Cutting | |
| #9 | Shaping of plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thompson James S | 56 |
| #2 | Blume William A | 10 |
| #3 | Brackett Tracy F | 4 |
| #4 | Smith Harry N | 2 |
| #5 | Hugh Gillies | 2 |
| #6 | Gillies Hugh A | 1 |
| #7 | Alley John D | 1 |
| #8 | William Bender | 1 |
| #9 | King Howard E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1827081A | Brake shoe | |
| US1845738A | Board for board drop hammers | |
| US1821163A | Clamp | |
| US1796433A | Friction brake | |
| US1883025A | Machine for cutting friction elements | |
| US1866287A | Friction elements and method of making | |
| US1882702A | Composition friction element | |
| US1822430A | Friction clutch block | |
| US1867348A | Friction brake | |
| US1847714A | Brake drum | |
| US1880750A | Friction brake | |
| US1724151A | Friction brake | |
| US1821487A | Method of making friction blocks | |
| US1839510A | Friction brake | |
| US1771595A | Friction brake | |
| US1844496A | Friction brake | |
| US1830341A | Friction brake | |
| US1857124A | Friction brake | |
| US1857125A | Friction brake shoe | |
| US1768882A | Friction brake |