| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Clutches and brakes | |
| #4 | Accessories for machine tools | |
| #5 | Construction of roads | |
| #6 | Percussive tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Feucht Jacob E | 9 |
| #2 | Andrew Meyer | 1 |
| #3 | Sebree Allen F | 1 |
| #4 | Spencer Bowman | 1 |
| #5 | Hauch Henry W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2834577A | Rock drill front end with dust collecting device | |
| US2802557A | Self releasable clutch | |
| US2874933A | Power actuated pin puller | |
| US2787250A | Rock drilling apparatus | |
| US2767957A | Rock drill front end | |
| US2726065A | Rock drill supporting and feeding mechanism | |
| US2737818A | Intermittent rotation mechanism with overload release | |
| US2737819A | Intermittent rotation mechanism with overload release | |
| US2840347A | Drill feeding apparatus | |
| US2819042A | Rock drilling apparatus | |
| US2758457A | Overriding clutch |