| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machine tools | |
| #3 | Furniture and games | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Hand carts | |
| #2 | Office furniture | |
| #3 | Workshop equipment | |
| #4 | Vehicle wheels | |
| #5 | Lifting and pushing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stahl Douglas R | 11 |
| #2 | Hees William A | 8 |
| #3 | English Charles L Jr | 7 |
| #4 | English Jr Charles L | 5 |
| #5 | Hees William | 3 |
| #6 | English Jr Charles Lamar | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6079931A | Lift dolly for use in conjunction with stand-mounted power tools and the like, including mounting mechanism | |
| US5957649A | Lift dolly for use in conjunction with stand-mounted power tools and the like | |
| US5876173A | Lift dolly |