| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 13 | |
| #2 | United States | 3 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Transport | |
| #3 | Control | |
| #4 | Electrical machinery and energy | |
| #5 | Machines | |
| #6 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Aeroplanes | |
| #3 | Systems controlling non-electric variables | |
| #4 | Parachutes | |
| #5 | Teaching materials | |
| #6 | Measuring speed and acceleration | |
| #7 | Electric motor controls | |
| #8 | Guiding railway traffic | |
| #9 | Weapon sights | |
| #10 | Ammunition fuzes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ecary Charles | 2 |
| #2 | Auguste Ecary Charles | 2 |
| #3 | Ecary Charles Auguste | 1 |
| #4 | Marie Rozycki Paulin Leon Jose | 1 |
| #5 | Guerpont Maurice | 1 |
| #6 | Darche Michel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2893248A | Device for indicating the true vertical | |
| GB856685A | Improvements in or relating to gyroscopic devices for indicating the true vertical | |
| US2937457A | Training gear for elementary flying instruction | |
| US2838724A | Electrical servo-mechanisms |