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