| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Pumps | |
| #4 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Idris Thomas | 8 |
| #2 | Tibbet Ernest I | 2 |
| #3 | Kinney Martin L | 1 |
| #4 | Vaughn Fred B | 1 |
| #5 | Albert Swanson | 1 |
| #6 | Fisher Robert P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2191000A | Deep well tool | |
| US2118242A | Latch for casing cutters and the like | |
| US2076684A | By-pass joint for well testers | |
| US2025944A | Jar | |
| US1927855A | High pressure valve or cock | |
| US1825026A | Casing spear | |
| US1777592A | Casing spear | |
| US1825025A | Fishing tool | |
| US1687808A | Fishing tool | |
| US1730905A | Pump liner | |
| US1587877A | Valve apparatus |