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| All Patents of Type: screw jacks | |||||
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| Number | Date | Patentee | Title | Type | |
| 336,793 | Feb. 23, 1886 | T.L. Chapman | Lifting Jack | screw jacks | |
| 461,643 | Oct. 20, 1891 | H.W. Robie | Screw-jack | screw jacks | |
| 1,089,703 | Mar. 10, 1914 | I.E. Hindman | Friction clutch for screw-jacks | screw jacks | |
| 1,228,210 | May 29, 1917 | I.E. Hindman | Screw-jack | screw jacks | |
| 1,574,331 | Feb. 23, 1926 | F.H. Wilder | Screw jack | screw jacks | |
| 3,941,352 | Mar. 02, 1976 | N.J. White, R.H. Nehrig | Bumper screw jack | automobile and truck jacks | |