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| Patents for W. H. Chapman | |||||
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| Number | Date | Patentee | Title | Type | |
| 461,897 | Oct. 27, 1891 | E. Ford | Single-Twist Auger Bit | auger bits | |
| 468,911 | Feb. 16, 1892 | G.L. Holt | Ratchet brace | ratchet braces | |
| 479,807 | Aug. 02, 1892 | E.L. Holcomb | Micrometer Calipers | micrometers | |
| 498,793 | Jun. 06, 1893 | E.P. Holly | Cash Register | cash registers | |
| 667,468 | Feb. 05, 1901 | C.J. Shirreff | Wagon Jack | ||
| 707,301 | Aug. 19, 1902 | W. Chesterman | Engineer's Square | squares | |