| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Thread cutting | |
| #3 | Grinding or polishing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Breitenstein Albert F | 19 |
| #2 | Barteit Ewald A | 2 |
| #3 | Bullock James E | 1 |
| #4 | Strickland Royce M | 1 |
| #5 | Barteit Erwald A | 1 |
| #6 | James Fraser | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1753848A | Self-opening die head | |
| US1802103A | Nonrotary self-opening die head | |
| US1702492A | Self-opening die head | |
| US1782804A | Collapsing taper-thread tap | |
| US1689768A | Self-opening die head | |
| US1639712A | Self-opening die head | |
| US1721854A | Die head | |
| US1706105A | Die head | |
| US1706104A | Die head | |
| US1713319A | Die head | |
| US1643832A | Nonrotary self-opening die head | |
| US1683126A | Self-opening die head | |
| US1603446A | Fixture for grinding the teeth of chasers | |
| US1579912A | Self-opening die head | |
| US1606502A | Self-opening die head | |
| US1560968A | Collapsing tap | |
| US1510296A | Collapsing tap | |
| US1530293A | Rotary collapsing tap | |
| US1446734A | Rotary die head | |
| US1435695A | Adjustable tap |