| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Percussive tools | |
| #2 | Unspecified technologies | |
| #3 | Dredging | |
| #4 | Accessories for machine tools | |
| #5 | Mining |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gunning Samuel D | 4 |
| #2 | Gunning Samuel David | 2 |
| #3 | Gunning S | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4105080A | Air hammer with blow-out air system | |
| US3757875A | Air hammer and combined support and muffler therefor | |
| US3739862A | Reciprocating air hammer | |
| US3625295A | Airhammer |