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| Patents for H. Frost Cushman | |||||
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| Number | Date | Patentee | Title | Type | |
| 517,990 | Apr. 10, 1894 | W.W. Trevor, F.N. Trevor | Machine for Barking Logs | debarking machines | |
| 687,413 | Nov. 26, 1901 | F.N. Trevor, W.W. Trevor | Steam Boiler | stationary boilers | |
| 696,119 | Mar. 25, 1902 | W.W. Trevor, F.N. Trevor | Sawing Machine | circular ripsaws | |
| 764,873 | Jul. 12, 1904 | W.W. Trevor, F.N. Trevor | Sawing Machine | circular ripsaws | |
| 883,922 | Apr. 07, 1908 | F.N. Trevor | Sawing Machine | circular ripsaws | |