| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Austria | 1 | |
| #4 | Brazil | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Germany | 1 | |
| #7 | Denmark | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Sweden | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Hand carts | |
| #2 | Lifting and pushing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rhodes Chester E | 5 |
| #2 | Garvey Eugene N | 2 |
| #3 | Rhodes C | 2 |
| #4 | Rhodes C E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4049083A | Electrically powered hand truck with stacker attachment | |
| US3901396A | Power control hand truck | |
| US3907138A | Power control hand truck |