| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Pumps | |
| #4 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Phipps John T | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2809015A | Under reamer | |
| US2793921A | Piston construction | |
| US2329939A | Well tool | |
| US2249578A | Roller bit | |
| US2085997A | Packer | |
| US1977085A | Drill | |
| US1774522A | Earth-boring drill | |
| US1711806A | Pump jack | |
| US1644947A | Core barrel | |
| US1615596A | Rotary well drill | |
| CA583322A | Pump piston construction |