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| Patents for William W. Calvert | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,978X | Mar. 31, 1832 | A. Messenger, R. Southwick, W.W. Calvert | Spinning wool and the manufacture of heavy fabricks | spinner | |
| 9,098X | Sep. 18, 1835 | W.W. Calvert | Wool or flax to brush into teeth | brushes or brooms | |
| 9,863X | Jul. 02, 1836 | W.W. Calvert | Wool and flax comber | spinner | |
| RX-52 | Sep. 09, 1843 | G.W. Lyman | Improvement to brush wool or flax into teeth set in cylinder or otherwise | brushes or brooms | |