| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Spain | 6 | |
| #3 | France | 1 | |
| #4 | United Kingdom | 1 | |
| #5 | United States | 1 |
| # | Technology | |
|---|---|---|
| #1 | Lighter-than air aircraft | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bruno Trenckmann | 1 |
| #2 | Erich Trenckmann | 1 |
| #3 | Dorr Wilhelm | 1 |
| #4 | Muller Waldemar | 1 |
| #5 | Strobl Hans | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE462077C | Gastight fabric, in particular balloon fabric, made of impregnated fabric | |
| DE466713C | Gas-tight fabric, in particular balloon fabric made from animal skin with a fabric cover | |
| GB256869A | Improvements in or relating to the manufacture of balloon fabric | |
| DE465385C | Balloon fabric made of gold bat skin or other animal skins | |
| US1567556A | Balloon-envelope material and process of manufacturing the same |