| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 10 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Ammunition fuzes | |
| #2 | Explosive charges | |
| #3 | Venting or aerating devices | |
| #4 | Manufacturing processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Billant Louis-Leon | 10 |
| #2 | Jr. Jean-Louis Borsch | 1 |
| #3 | Louis Leon Billant | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB125990A | Improvements in or relating to Valves. |