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| All Patents in class 525/354 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,090 | Feb. 24, 1839 | N. Hayward | Improvement in the mode of preparing caotchouc with sulphur for the manufacture of various articles | ||
| 3,633 | Jun. 15, 1844 | C. Goodyear | Improvement in India-rubber fabrics | making textiles | |
| 22,560 | Jan. 11, 1859 | H.W. Joslin | Improvement in treatment of india-rubber | ||