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| Patents for John W. Griffiths | |||||
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| Number | Date | Patentee | Title | Type | |
| 11,784 | Oct. 10, 1854 | J.W. Griffiths | Improvement in construction of ships | ||
| 34,360 | Feb. 11, 1862 | J.W. Griffiths | Improvement in ship-building | ||
| 171,376 | Dec. 21, 1875 | J.W. Griffiths | Improvement in machines for bending wood | wood bending machines | |