| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | United States | 3 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Basic communication technologies | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Machines | |
| #2 | Pumps | |
| #3 | Unspecified technologies | |
| #4 | Amplifiers | |
| #5 | Internal-combustion piston engines | |
| #6 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Robert Esnault-Pelterie | 9 |
| #2 | Esnault Pelterie Robert | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US1868199A | Packing device | |
| US1418672A | Hydraulic pump | |
| US1471860A | Internal-combustion and fluid-pressure engine |