| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 1 | |
| #3 | Germany | 1 | |
| #4 | Egypt | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Japan | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies | |
| #3 | Nails | |
| #4 | Installation of electric cables | |
| #5 | Distribution of electric power | |
| #6 | Unspecified technologies | |
| #7 | Bolts for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Prather Joseph E | 5 |
| #2 | Khalifa Ramzi A | 4 |
| #3 | Prather J E | 1 |
| #4 | Khalifa Ramzl A | 1 |
| #5 | Jiyosefu Erisu Purazaa | 1 |
| #6 | Wenzler Peter B | 1 |
| #7 | Prather Josef Alice | 1 |
| #8 | Ramzy Khalifa | 1 |
| #9 | Khalifa Ramzi Abdel-Mones | 1 |
| #10 | Prather Joseph Ellis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4435027A | Self-locking hinged door cabinet and latch for the same | |
| US4058334A | Self-locking devices | |
| US4029348A | Self-locking devices | |
| US4061371A | Self-locking devices |