| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machine tools | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Steam generation | |
| #2 | Fluid heaters | |
| #3 | Unspecified technologies | |
| #4 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gustave Welter | 7 |
| #2 | Barnum Starr H | 2 |
| #3 | Soren Townsend H | 1 |
| #4 | Horsley William | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2048308A | Waste heat boiler | |
| US1992793A | Water tube box closure | |
| US1983649A | Boiler construction | |
| US1927327A | Boiler construction | |
| US1667758A | Electric boiler apparatus | |
| US1731957A | Boiler construction | |
| GB257569A | Improvements in tube-plate constructions for water-tube boilers and the like | |
| US1590876A | Tube-plate construction | |
| GB201878A | Improvements in water-tube boilers | |
| US1600617A | Water-tube boiler | |
| US1027480A | Machine for forming lugs for boilers, &c. |