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| All Patents in class 277/505 | |||||
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| Number | Date | Patentee | Title | Type | |
| RE254 | Jan. 10, 1854 | C.W. Noyes, T.W. Allen | Piston-Rod Packing | piston ring and packing | |
| RE255 | Jan. 10, 1854 | J. Judson, A. Judson | Improved Governor-valve for Steam-engines | steam engine governors | |
| 759,330 | May 10, 1904 | A.O. Van Dervort | Packing | steam engine packing | |
| 2,267,183 | Dec. 23, 1941 | G.H. Williams | Stuffing Box | oil well pumps | |
| 3,669,459 | Jun. 13, 1972 | M.M. Bass | Oscillating spindle seal | ||