| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 9 | |
| #2 | Switzerland | 2 | |
| #3 | Spain | 2 | |
| #4 | United Kingdom | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Locks | |
| #3 | Wing fittings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heller August | 13 |
| #2 | Wenzel Josef | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB190017385A | Improvements in Automatical Locking-devices for Door and Window-leaves, and all kinds of Roller-doors. | |
| US679023A | Automatic locking device for doors, & c. |