| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 | |
| #3 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Transport | |
| #5 | Basic communication technologies | |
| #6 | Chemical engineering | |
| #7 | Engines, pumps and turbines | |
| #8 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee William S | 11 |
| #2 | Richard Pfaehler | 3 |
| #3 | David Nabow | 3 |
| #4 | Nobaw David | 1 |
| #5 | Pfaehler Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2817772A | Pulse switching apparatus | |
| US1741320A | Hydraulic gate-operating mechanism | |
| US1681487A | Apparatus for controlling hydraulic gates | |
| US1642253A | Hydraulic gate | |
| US1283819A | Four-wheel drive for vehicles. | |
| US1140603A | Insulator-clamp. | |
| US1051131A | Apparatus for the endothermic reaction of gases. | |
| US1033911A | Explosion-engine. | |
| US761893A | Trousers-hanger. | |
| CA255605A | Hydraulic gate |