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| Patents for Frank A. Howard | |||||
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| Number | Date | Patentee | Title | Type | |
| 57,325 | Aug. 21, 1866 | F.A. Howard | Improvement in mitering-machines | miter machines | |
| 80,583 | Aug. 04, 1868 | I. Allard | Improvement in screw-drivers | spiral screwdrivers | |
| 81,373 | Aug. 25, 1868 | F.A. Howard | Improvement in machine for mitering | miter machines | |
| 157,087 | Nov. 24, 1874 | I. Allard | Improvement in screw-drivers | ||
| 470,001 | Mar. 01, 1892 | F.A. Howard | Screw-driver | spiral screwdrivers | |
| 470,055 | Mar. 01, 1892 | J.W. Jones | Screw-driver | spiral screwdrivers | |