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| All Patents in class 55/400 | |||||
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| Number | Date | Patentee | Title | Type | |
| 107,665 | Sep. 27, 1870 | W.S. Colwell | Improvement in blowers | waste collection mechanisms | |
| 165,662 | Jul. 20, 1875 | J. Du Bois | Improvement in spark-arresters | ||
| 872,072 | Nov. 26, 1907 | F.J. Lyman | Spark Destroyer for Smoke Stacks | traction engine spark arresters | |