| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 36 | |
| #2 | Canada | 9 | |
| #3 | Austria | 2 | |
| #4 | Spain | 2 | |
| #5 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Thermal processes | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Rail vehicle suspensions | |
| #2 | Steam generation | |
| #3 | Locomotives | |
| #4 | Machines | |
| #5 | Railway bodies | |
| #6 | Couplings | |
| #7 | Unspecified technologies | |
| #8 | Machines for making railways | |
| #9 | Superheating of steam | |
| #10 | Solid fuel combustion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Muhlfeld John E | 47 |
| #2 | Caracristi Virginius Z | 4 |
| #3 | Stafford Hal R | 3 |
| #4 | Ball Herman F | 2 |
| #5 | Carucristi Virginius Z | 1 |
| #6 | Sandman August G | 1 |
| #7 | Chapple John C | 1 |
| #8 | Joseph Gutteridge | 1 |
| #9 | Virginius Z Caracristi | 1 |
| #10 | John E Muhlfeld | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2015188A | Car underframe | |
| US1829962A | Locomotive bed | |
| US1864272A | Duplex compound draft gear | |
| US1901465A | Steam boiler structure | |
| US1753211A | Locomotive tender | |
| US1840050A | Lagging for boiler furnaces | |
| US1857320A | Baffle wall | |
| US1760431A | Side brick for fire-box arches | |
| US1748612A | Integral piston and piston rod for reciprocating engines | |
| US1784378A | Locomotive superheater | |
| US1768920A | Steam-collecting means for boilers | |
| US1704143A | Steam locomotive | |
| US1704142A | Steam locomotive | |
| US1712630A | Locomotive engine | |
| US1611770A | Steam-boiler structure | |
| US1499119A | Supplemental drive for vehicles | |
| US1449536A | Locomotive | |
| US1627402A | Steam locomotive | |
| US1262231A | Locomotive-tender. | |
| CA181569A | Method of burning pulverized fuel |