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| Patents for H. E. Long | |||||
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| Number | Date | Patentee | Title | Type | |
| 68,519 | Sep. 03, 1867 | H.E. Long | Woodworker's Leg Vise | leg vises | |
| 103,212 | May 17, 1870 | H.E. Long | Rotary Steam Engine | steam engines | |
| 744,963 | Nov. 24, 1903 | C.T. Frantz | Machinist's Protractor | protractors | |