| All Patents in class 418 |
Patents 16 -
30
of 279
      |
| Number | Date | Patentee | Title | Type |
| 4,055 | May 16, 1845 | J.J. Springsteen | Water Wheel | turbine water wheels |
| 4,776 | Sep. 26, 1846 | J. Miller | Rotary Engine | rotary steam engines |
| 5,343 | Oct. 30, 1847 | D. Buffum, A. Buffum | Rotary Steam Engine | rotary steam engines |
| 6,359 | Apr. 17, 1849 | J. Tremper | Piston-ring and method of deriving motion therefrom in rotary engines | rotary steam engines |
| 6,616 | Jul. 31, 1849 | J.P. Ross | Rotary Steam Valve | steam engine valves |
| 6,927 | Dec. 04, 1849 | A. Stiven | Improvement in pumps for raising water | rotary pumps |
| 9,600 | Mar. 01, 1853 | J. McKay | Steam Engine | rotary steam engines |
| 10,075 | Oct. 04, 1853 | J.C. Salomon | Rotary Steam Engine | rotary steam engines |
| 11,909 | Nov. 07, 1854 | C. Rumley | Rotary Steam Engine | rotary steam engines |
| 12,350 | Feb. 06, 1855 | B. Holly | Rotary Pump | rotary pumps |
| 13,458 | Aug. 21, 1855 | S. Gerhard, W. Fields | Water Wheel | water wheels |
| 15,281 | Jul. 08, 1856 | T. Turton, J.M. Colman | Rotary Steam Engine | rotary steam engines |
| 18,255 | Sep. 22, 1857 | D.C. Turner | Rotary Steam Engine | rotary steam engines |
| 18,986 | Dec. 29, 1857 | O. Palmer | Rotary pump | rotary pumps |
| 20,796 | Jul. 06, 1858 | A.P. Holly | Rotary Pump | rotary pumps |
