| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 | |
| #2 | Canada | 3 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Environmental technology | |
| #3 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Murray William B | 15 |
| #2 | Rice Philip X | 7 |
| #3 | Murray William Brooks | 2 |
| #4 | Control Corporation The Miller | 1 |
| #5 | Brooks Murray William | 1 |
| #6 | Murray Earle E | 1 |
| #7 | Murray Frederick W | 1 |
| #8 | Miller Harvey B | 1 |
| #9 | Earle Murray | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1835716A | Train control system | |
| GB253941A | Improvements in or relating to train control systems | |
| US1834904A | Inductor for train control systems | |
| US1674914A | Electromagnetic valve | |
| US1602775A | Reset valve for train-control mechanism | |
| US1669781A | Governor | |
| US1775051A | Train-control system | |
| US1535241A | Train-control mechanism | |
| US1549724A | Hydraulic governor | |
| US1495562A | Train-control system | |
| US1518214A | Recording mechanism | |
| US1431025A | Train-stopping apparatus | |
| US1203242A | Train-control means. | |
| US1296838A | Train-control system. | |
| US1263592A | Train-stopping means. | |
| US1265943A | Pressure-operated and electrically-controlled train-control system. | |
| US1294823A | Train-control system. | |
| US1301296A | Ramp and adjustable ramp-support. | |
| US1254839A | Train-control system and apparatus. | |
| US1213892A | Train-control system. |