| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Japan | 7 | |
| #3 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Lifting and pushing | |
| #2 | Unspecified technologies | |
| #3 | Vehicle wheels | |
| #4 | Multi-purpose tools | |
| #5 | Tools for connecting or disengaging | |
| #6 | Handles for hand implements | |
| #7 | Gearing | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Engel Darryl L | 12 |
| #2 | Dariru Eru Engeru | 6 |
| #3 | Scoville John R | 4 |
| #4 | Jiyon Aaru Sukobiru | 3 |
| #5 | Buchanan Matthew E | 2 |
| #6 | Lutz Jay H | 2 |
| #7 | Daariru Eru Engeru | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5865424A | Scissors jack gear tooth disengagement prevention system | |
| CA2103658A1 | Tapered channels for jack formed by thinning material | |
| US5312088A | Screw designs for a scissors jack | |
| US5201257A | Folding lug wrench | |
| CA2053076A1 | Lift cap for a jack | |
| US5165660A | Drive unit for a jack | |
| US5110091A | Scissors jack which has improved formed gear teeth | |
| US5064171A | Drive head for a scissors jack | |
| US4986802A | Planetary gear box for a jack | |
| US4802653A | Scissors jack |