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| Patents for P. Kettenring | |||||
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| Number | Date | Patentee | Title | Type | |
| 252,481 | Jan. 17, 1882 | W.H. Lenhart | Lathe for turning eccentric or polygonal forms | pattern lathes | |
| 260,127 | Jun. 27, 1882 | C. Seymour | Proportional balance | woodworking machine sharpening mechanisms | |
| 267,465 | Nov. 14, 1882 | C. Seymour | Mortising-machine | mortising machines | |
| 426,147 | Apr. 22, 1890 | C. Seymour | Spoke-driver | wheelwright | |