| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 17 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mccullough Ira J | 7 |
| #2 | Beck Julius S | 4 |
| #3 | Mccullough Otis J | 1 |
| #4 | Raymond Edward F | 1 |
| #5 | Sumter Black Millard | 1 |
| #6 | Boulter George M | 1 |
| #7 | Black Millard S | 1 |
| #8 | Mcdonald Pyles Robert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2144869A | Rotary jar | |
| US2144810A | Adjusting device for jars | |
| US2126241A | Jar | |
| US1954513A | Adjustable trip jar | |
| US2022138A | Jarring tool | |
| US2035905A | Jarring tool | |
| US1983865A | Jar | |
| US2016607A | Rotary jar | |
| US2029579A | Jarring tool | |
| US1989907A | Jar and safety coupling | |
| US2020561A | Spear and releasable hammer | |
| US1973137A | Safety coupling for screw joints | |
| US2008765A | Jar | |
| US1896415A | Line tightener | |
| US2058166A | Jarring tool | |
| US1989906A | Jar | |
| US2008743A | Jar |