| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | United Kingdom | 3 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Locomotives | |
| #3 | Clutches and brakes | |
| #4 | Furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henri Pieper | 1 |
| #2 | De Belgique Constructions Elec | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE620086C | Insulating sleeve for semi-closed grooves in electrical machines | |
| GB366492A | Improvements in stator cores for dynamo-electric machines | |
| GB273334A | Improvements in and in the manufacture of flexible toothed wheels, flexible clutchesor couplings and other like devices | |
| US1468920A | Electric locomotive |