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| Patents for Ivor J. Gruenberg | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,274,543 | Feb. 24, 1942 | I.J. Gruenberg | Trimming mechanism for grinder wheels | grinder dressers | |
| 2,392,819 | Jan. 15, 1946 | S.G. Brady, I.J. Gruenberg | Gear Grinding Machine | gear grinding machines | |
| 2,456,410 | Dec. 14, 1948 | S.G. Brady, I.J. Gruenberg | Gear Grinding Machine | gear grinding machines | |
| 2,761,585 | Sep. 04, 1956 | R.H. Mustonen, I.J. Gruenberg, A.A. Muehling | Apparatus for orienting prismatic bodies | ||