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| All Patents in class 137/115.16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 627,850 | Jun. 27, 1899 | F.G. Hobart | Compression Controller | air compressor controllers | |
| 1,215,071 | Feb. 06, 1917 | G.F. Steedman | Unloading-Valve for Compressors | compressor relief valves | |
| 3,955,396 | May 11, 1976 | L.F. Carrieri | Press overload protection system | hydraulic metalworking presses | |