| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Engines, pumps and turbines | |
| #3 | Mechanical elements | |
| #4 | Transport | |
| #5 | Chemical engineering | |
| #6 | Environmental technology | |
| #7 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Denker Charles T | 13 |
| #2 | John Kmit | 2 |
| #3 | Moore John R | 2 |
| #4 | Winton Hugo R | 1 |
| #5 | Johanson Adolph T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2885877A | Washing machines | |
| US2886125A | Suction cleaners | |
| US2791881A | Combined diesel and steam engine | |
| US2836863A | Panel structures | |
| US2677502A | Traction tread | |
| US2631032A | Emergency escape hatch | |
| US2660230A | Oil burner | |
| US2501763A | Solid fuel furnace of the rotary grate progressive feed type | |
| US2194694A | Heating system | |
| US1564213A | Apparatus for heating street pavements | |
| US1370685A | Strainer and fish-trap for water-lines | |
| US1013867A | Exhaust-valve mechanism. | |
| CA465034A | Steam boiler |