| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 22 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Mechanical elements | |
| #5 | Electrical machinery and energy | |
| #6 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Tools for connecting or disengaging | |
| #4 | Unspecified technologies | |
| #5 | Electric switches | |
| #6 | Pistons and sealings | |
| #7 | Pipes | |
| #8 | Controlling combustion |
| # | Name | Total Patents |
|---|---|---|
| #1 | Baash Lawrence F | 22 |
| #2 | Maxwell William H | 7 |
| #3 | Erwin Burns | 4 |
| #4 | Garrard George B | 4 |
| #5 | Mcmahon Emmet H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2063361A | Slip | |
| US2113821A | Safety joint | |
| US2177164A | Blow-out preventer | |
| US2098369A | Pipe handling tool | |
| US1900378A | Tongs | |
| US1918443A | Tool joint | |
| US1905122A | Packing assembly | |
| US1918442A | Packer for casing heads | |
| US1872219A | Packer for casing heads | |
| US1845219A | Packer for casing heads | |
| US1837645A | Tongs | |
| US1801257A | Tongs | |
| US1837644A | Tongs | |
| US1845389A | Tongs | |
| US1810938A | Tongs | |
| US1924389A | Tongs | |
| US1591264A | Attachment for fishing tools | |
| US1615355A | Gas regulator for burners | |
| US1505690A | Well-casing shoe | |
| US1272597A | Casing-perforator. |