| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 3 | |
| #3 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes | |
| #3 | Machines | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Steam engine plants | |
| #2 | Vehicle transmission mounting | |
| #3 | Machines | |
| #4 | Steam generation | |
| #5 | Unspecified technologies | |
| #6 | Controlling combustion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Abner Doble | 4 |
| #2 | Doble Abner | 3 |
| #3 | Warfield Roy M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB607611A | Improvements in or relating to power plant | |
| GB594428A | Improvements in or relating to steam power plants | |
| GB605949A | Improvements in or relating to the control of steam engines | |
| US2440329A | Control means for correlating supply of aspirating to aspirated fluids | |
| US2393313A | Steam power plant | |
| US2379887A | Steam power plant | |
| US2440328A | Speed and cutoff control means for steam engines and the like | |
| US1883145A | Steam generator | |
| CA468411A | Steam power plants | |
| CA433293A | Steam engine control means | |
| CA433718A | Steam power plant |