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| All Patents in class 418/202 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,026,887 | May 21, 1912 | J.H. Van Deventer | Rotary Engine | rotary steam engines | |
| 1,046,687 | Dec. 10, 1912 | J.H. Van Deventer | Rotary Engine | rotary steam engines | |
| 1,070,085 | Aug. 12, 1913 | J.H. Van Deventer | Rotary engine | ||
| 1,070,086 | Aug. 12, 1913 | J.H. Van Deventer | Rotary Engine | rotary steam engines | |
| 2,460,310 | Feb. 01, 1949 | G. Rathman | Screw pump | air compressors | |