| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 324 | |
| #2 | Canada | 83 | |
| #3 | United Kingdom | 3 | |
| #4 | Germany | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Electrical machinery and energy | |
| #3 | Machines | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Richards Willard F | 103 |
| #2 | Sauvage William H | 75 |
| #3 | Creveling John L | 34 |
| #4 | Barrows Donald S | 29 |
| #5 | Jepson John W | 29 |
| #6 | Turbayne William A | 27 |
| #7 | Davis Donald C | 19 |
| #8 | Bouche William F | 15 |
| #9 | Blake Eli J | 12 |
| #10 | Crosby Gorham | 9 |
| Publication | Filing date | Title |
|---|---|---|
| US1998468A | Draft rigging | |
| US1936343A | Railway truck | |
| US1989027A | Coupler | |
| US2000987A | Coupler operating mechanism | |
| US2053940A | Cushioning mechanism | |
| US2031617A | Coupler | |
| US1842007A | Railway truck | |
| US2054566A | Cushioning mechanism | |
| US2023550A | Coupler | |
| US1930849A | Railway draft gear | |
| US1843065A | Railway truck | |
| US1982858A | Draft rigging | |
| US1897279A | Coupler | |
| US1842307A | Railway truck | |
| US2002508A | Coupler | |
| US1866341A | Cushioning mechanism | |
| US1788874A | Truck | |
| US1852393A | Truck bolster | |
| US1958316A | Coupler | |
| US1774481A | Side frame |