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| Patents for Philip Hufeland | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 103,241 | May 17, 1870 | P. Schrag, P. Hufeland | Improvement in machines for cutting off lead-pencils | |
 | 103,746 | May 31, 1870 | P. Hufeland | Improvement in machine for grooving lead-pencil blanks | |
 | RE5,236 | Jan. 14, 1873 | P. Schrag, P. Hufeland | Machine for cutting off pencils | |
 | 164,838 | Jun. 22, 1875 | P. Hufeland | Improvement in machines for cutting fan-leaves | |