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| Patents for Robert Dunbar | |||||
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| Number | Date | Patentee | Title | Type | |
| 67,174 | Jul. 30, 1867 | R. Dunbar | Water Wheel | water wheels | |
| RE3,099 | Aug. 25, 1868 | R. Dunbar | Water Wheel | water wheels | |
| 197,076 | Nov. 13, 1877 | R.W. Aitken | Balanced-Valve | steam engine valves | |
| 268,290 | Nov. 28, 1882 | W.L. Roberts | Machine for drawing and edging shingles | shingle machines | |