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| Patents for Edward Weissenborn | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 68,819 | Sep. 10, 1867 | E. Weissenborn | Improvement in machines for making lead pencils | |
 | 341,080 | May 04, 1886 | E. Weissenborn | Calipers or Dividers | |
 | 341,081 | May 04, 1886 | E. Weissenborn | Compass Attachment for Pencils | |