| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 9 | |
| #2 | United States | 7 | |
| #3 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Earth drilling | |
| #3 | Lifting and pushing | |
| #4 | Load transportation vehicles | |
| #5 | Ladders | |
| #6 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Troche Herman J | 12 |
| #2 | Eckels George H | 11 |
| #3 | Verrell Curtis W | 1 |
| #4 | Holan James H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR1342401A | Transportable crane | |
| FR1335914A | Derrick | |
| US3073396A | Portable derrick with telescoping fluid transmission lines | |
| US3073455A | Derrick | |
| US3022854A | Mobile aerial tower | |
| US2996140A | Mobile aerial tower | |
| US2980263A | Derrick | |
| US3022839A | Earth boring apparatus | |
| US2981362A | Vehicle ladder apparatus | |
| CA657052A | Derricks | |
| CA637922A | Derrick | |
| CA654807A | Mobile aerial tower | |
| CA799264A | Boom extension | |
| CA675241A | Aerial ladder | |
| CA669937A | Earth boring apparatus | |
| CA675274A | Earth boring derrick | |
| CA657053A | Derricks | |
| CA626560A | Mobile aerial tower |