| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 45 | |
| #2 | Canada | 6 | |
| #3 | United Kingdom | 3 | |
| #4 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Staples Otis E | 31 |
| #2 | Adams Frank H | 10 |
| #3 | Carlin Theodore F | 9 |
| #4 | Merrill George L | 2 |
| #5 | Bent Anthony J | 2 |
| #6 | Batorski Edward J | 2 |
| #7 | Staples William H | 2 |
| #8 | Perkins Charles M | 1 |
| #9 | Cassel William H | 1 |
| #10 | Sommer Luther A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2773428A | Hobbing machine | |
| US2763102A | Dressing device | |
| US2756606A | Yieldable nut | |
| US2777209A | Gear checking apparatus | |
| US2773407A | Turning machine | |
| US2642702A | Gear grinding machine | |
| US2568667A | Machine tool | |
| US2700324A | Method of hobbing | |
| US2773427A | Hobbing machine | |
| US2701495A | Turning machine | |
| US2629290A | Hobbing machine | |
| US2530550A | Cutter | |
| US2684016A | Hobbing machine | |
| US2629291A | Machine tool | |
| US2530549A | Method of manufacturing cutters | |
| US2525420A | Cam checking fixture | |
| US2539597A | Tool checking fixture | |
| US2537967A | Hobbing machine | |
| US2390607A | Hobbing machine | |
| US2395591A | Motor control |