| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Making gears or toothed racks | |
| #3 | Sawing | |
| #4 | Accessories for machine tools | |
| #5 | Metal-working | |
| #6 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Perkins Julian L | 12 |
| #2 | Sickles Frank W | 6 |
| #3 | Croft Hiram D | 6 |
| #4 | John Oakley | 5 |
| #5 | Wilson Robert A | 3 |
| #6 | Deloghia Louis E | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1597244A | Worktable | |
| US1516984A | Index | |
| US1503996A | Worm-cutting attachment for gear-broaching machines | |
| US1503995A | Universal turning fixture | |
| US1486604A | Broaching machine | |
| US1469602A | Machine for and method of broaching gears | |
| US1437009A | Worm and method of making the same | |
| US1430252A | Multiple gear-cutting machine | |
| US1440933A | Broach | |
| US1396523A | Broach-tooth | |
| US1372903A | Fluid-control feed | |
| US1370837A | Broach |