| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 18 | |
| #2 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Transport | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Earth drilling | |
| #3 | Vehicle suspension arrangements | |
| #4 | Unspecified technologies | |
| #5 | Winches | |
| #6 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Beckwith Robert C | 12 |
| #2 | Hecker Robert W Jr | 10 |
| #3 | Loomis Martin | 5 |
| #4 | Abbott Leon M | 4 |
| #5 | Martin Loomis | 4 |
| #6 | Hecker Jr Robert W | 3 |
| #7 | Mcconica Thomas H | 2 |
| #8 | Lott Daniel L | 2 |
| #9 | Jonah Reynard | 1 |
| #10 | Good Bruce Z | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3411168A | Dockboard | |
| US3409922A | Dockboard | |
| US3327335A | Dockboard | |
| US2972762A | Adjustable loading ramp | |
| US3006008A | Dock board construction used as self adjusting bridge between truck and dock | |
| US2994894A | Loading ramp | |
| US2843865A | Dockboards | |
| US2592919A | Dockboard | |
| US1805139A | Drilling machine | |
| US1769164A | Cable-line attachment for drilling machines | |
| US1440226A | Friction clutch | |
| US1523549A | Load carrier | |
| CA905613A | Loading ramp construction | |
| CA716237A | Loading ramp | |
| CA815756A | Dockboard assembly | |
| CA856456A | Dockboard | |
| CA860555A | Dockboard | |
| CA809854A | Dockboard | |
| CA690147A | Manually actuated levelor | |
| CA871959A | Dockboard |