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| Patents for William L. Speiden | |||||
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| Number | Date | Patentee | Title | Type | |
| 397,984 | Feb. 19, 1889 | W.X. Stevens, E.B. Hess | Refrigerator | ice boxes and refrigerators | |
| 400,802 | Apr. 02, 1889 | W.X. Stevens | Automatic switch | track and switches | |
| 408,143 | Jul. 30, 1889 | W.X. Stevens | Ink-grinding slab | ||
| 481,598 | Aug. 30, 1892 | W.X. Stevens | Rock-drilling machine | impact chisels and drills | |
| 609,171 | Aug. 16, 1898 | W.X. Stevens | Bicycle-frame | bicycles and tricycles | |