| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 2 | |
| #2 | Italy | 2 | |
| #3 | United States | 2 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Greece | 1 | |
| #8 | Portugal | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Bolts for doors or windows | |
| #2 | Unspecified technologies | |
| #3 | Locks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Colombo Angelo | 4 |
| #2 | Consonni Giancarlo | 1 |
| #3 | Valli P | 1 |
| #4 | Valli Pasquale | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ITMI912668D0 | Device to facilitate the opening of doors or windows, particularly suitable for use by disabled persons | |
| US4479671A | Tubular door lock with a catch device | |
| CA1120514A | Cam operated lock, particularly for doors | |
| IT7826568D0 | Cam operated door lock - can be fitted to both left and right hand opening doors and is opened by downward turning of handle | |
| GR61167B | Disposition with helical spring for dooes handles |