| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 77 | |
| #2 | Canada | 9 | |
| #3 | United Kingdom | 9 | |
| #4 | France | 7 | |
| #5 | Germany | 2 | |
| #6 | Australia | 1 | |
| #7 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Drake Alden M | 12 |
| #2 | Franklin Judge | 10 |
| #3 | Koonz Earl R | 8 |
| #4 | Koehler Oscar E | 7 |
| #5 | Morgan Ralph L | 6 |
| #6 | Strickland Royce M | 4 |
| #7 | Wells Frank O | 4 |
| #8 | Peter Plantinga | 4 |
| #9 | Cook Wallace A | 3 |
| #10 | Judge Franklin | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2710979A | Die head with self-retiring chasers | |
| US2600349A | Die holder cap | |
| US2557040A | Thread-cutting tool with automatically retirable chasers | |
| US2536376A | Toolholder | |
| US2536864A | Method of producing threadcutting chasers | |
| US2549543A | Thread-cutting tool with retirable chasers | |
| US2522655A | Threading-die holder | |
| US2246865A | Method of forming taps | |
| US2251336A | Die and die holder | |
| US2257256A | Flute grinding apparatus | |
| US2202236A | Tap | |
| US2242305A | Tool chuck | |
| US2193615A | Tool chuck | |
| US2265238A | Tool chuck | |
| US2135679A | Pipe cleaner | |
| US2129848A | Interchangeable die collet | |
| US2135671A | Die stock | |
| US2160664A | Tap wrench | |
| US2126476A | Hollow mill | |
| US2114448A | Tap |