| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Transport | |
| #3 | Mechanical elements | |
| #4 | Control | |
| #5 | Measurement | |
| #6 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Marsh John W | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US2508347A | Method of making buffers | |
| US2588549A | Throttle valve application | |
| US2470041A | Valve structure | |
| US2450480A | Valve | |
| US2464330A | Distribution and by-pass valve for reciprocating expansible-chamber engines | |
| US2370678A | Pressure gauge | |
| US2340335A | Buffer | |
| US2334720A | Speed sensitive governor | |
| US2377350A | Power-transmitting mechanism | |
| US2155434A | Transmission mechanism | |
| US2168359A | Power-transmission gear | |
| US2166961A | Torque transmitting device | |
| US1388818A | Swing-truck-yoke support for railroad rolling-stock | |
| CA446496A | Buffer for railway cars |