| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | United Kingdom | 3 | |
| #3 | Canada | 2 | |
| #4 | Switzerland | 1 | |
| #5 | Germany | 1 | |
| #6 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Packaging and shipping | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Making forged metal products | |
| #3 | Tools for connecting or disengaging | |
| #4 | Containers for goods storage | |
| #5 | Making screws | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Simons Leon | 10 |
| #2 | Leon Simons | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4815909A | Wood screw and method for making same | |
| US4711368A | Tamper proof package with electrical circuit | |
| US4630985A | Self aligning screw | |
| US4338835A | Recessed head fastener and driver therefor | |
| GB1219237A | Vibration-resistant screw | |
| CA430366A | Metal coating method | |
| CA893459A | Vibration-resistant screw |