| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Thermal processes | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Civil engineering | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Superheating of steam | |
| #3 | Unspecified technologies | |
| #4 | Grates | |
| #5 | Ships | |
| #6 | Crop agriculture | |
| #7 | Doors and windows | |
| #8 | Gearing | |
| #9 | Steam generation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ward Charles E | 13 |
| Publication | Filing date | Title |
|---|---|---|
| GB0117491D0 | Easy seat | |
| US1945210A | Propulsion device for boats | |
| US1764918A | Flanking vane for ships | |
| US1717286A | Rudder control for towboats | |
| US1780804A | Seal for stern bearings for propeller shafts | |
| US1612243A | Means for applying power to side-wheel vessels | |
| US1721239A | Reduction-gear drive for stern-wheel boats | |
| US1436838A | Steam boiler and superheater therefor | |
| US1456016A | Liquid heater and vaporizer | |
| US1406786A | Window | |
| US1262145A | Water-tube steam-boiler. | |
| US1100512A | Cultivator. | |
| US803375A | Grate. | |
| CA52774A | Car-coupler |