| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Control | |
| #4 | Packaging and shipping | |
| #5 | Engines, pumps and turbines | |
| #6 | Mechanical elements | |
| #7 | Transport | |
| #8 | Consumer goods | |
| #9 | Agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johnson Frank W | 11 |
| #2 | Friedmann Maurice E | 1 |
| #3 | Patterson Harold H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4779777A | Support bracket for metal detector | |
| US4050179A | Rod butt with integral reel seat | |
| CA943005A | Railway spike aligner | |
| US2942315A | Line fastening device | |
| US2721543A | Self-adjusting contactor for valves | |
| US2336936A | Community tool-stall | |
| US2283605A | Valve | |
| US2016009A | Case | |
| US1679087A | Changeable-combination key lock | |
| US1587650A | Child's toy vehicle | |
| US1480909A | Pressure-regulating device |