| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 40 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Packaging and shipping | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Grates | |
| #2 | Feeding fuel to combustion device | |
| #3 | Milling | |
| #4 | Casings for combustion chambers | |
| #5 | Pumps | |
| #6 | Unspecified technologies | |
| #7 | Gearing | |
| #8 | Machines | |
| #9 | Handling thin material | |
| #10 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Crowe Paul L | 43 |
| #2 | Frankenheim Aaron | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US1760120A | Combined fuel blower and pulverizer | |
| US1733683A | Electrically-driven coal pulverizer and fire feeder | |
| US1701443A | Peripheral motor machine | |
| US1696387A | Crushing machine | |
| US1654639A | Crushing apparatus | |
| US1639214A | Grinding and separating apparatus | |
| US1627488A | Ball mill | |
| US1627487A | Baill mill | |
| US1628488A | Ball mill | |
| US1644565A | Centripetal compressor | |
| US1278861A | Sprocket-wheel. | |
| US1281525A | Chain grate. | |
| US1262647A | Stoker-bridge. | |
| US1264902A | Stoker-bridge. | |
| US1115904A | Chain grate. | |
| US1123177A | Sprocket. | |
| US1224904A | Ash-dumping mechanism. | |
| GB191101603A | Improvements relating to Furnace Setting. | |
| US984197A | Furnace. | |
| US1003037A | Speed-regulator releasing mechanism. |