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| Patents for Walter J. Richards | |||||
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| Number | Date | Patentee | Title | Type | |
| 854,704 | May 21, 1907 | W.J. Richards | Dynamo-electric machine | motor commutators | |
| 865,820 | Sep. 10, 1907 | W.J. Richards | Motor-control system | motor controls | |
| 865,821 | Sep. 10, 1907 | W.J. Richards | System of motor control | motor controls | |
| 867,154 | Sep. 24, 1907 | W.J. Richards | System of motor control | motor controls | |
| 867,155 | Sep. 24, 1907 | W.J. Richards | Motor-control system | motor controls | |