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| Patents for Evaristo Conrado Engelberg | |||||
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| Number | Date | Patentee | Title | Type | |
| 341,324 | May 04, 1886 | E.C. Engelberg | Machine for hulling rice | ||
| 383,285 | May 22, 1888 | E.C. Engelberg | Rice-hulling machine | ||
| 424,602 | Apr. 01, 1890 | E.C. Engelberg | Rice-hulling machine | ||
| 1,105,635 | Aug. 04, 1914 | E.C. Engelberg | Machine for hulling and polishing rice | ||