| Patents for Providence Steam Engine Co. |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 4,202 | Sep. 19, 1845 | F.E. Sickels | Mode of connecting steam-cylinders with steam-chests | steam engine valve gear |
| 12,507 | Mar. 13, 1855 | N.T. Greene | Cut-off valve for steam-engines | steam engine valve gear |
| RE565 | Jun. 01, 1858 | F.E. Sickels | Improvement in the mode of connecting steam-cylinders with steam-chests | steam engine valve gear |
| 68,555 | Sep. 03, 1867 | O.C. Burdict | Improved machine for heading bolts | nut or bolt making machines |
| 97,351 | Nov. 30, 1869 | O.C. Burdict | Improved bolt-heading machine | nut or bolt making machines |
| 335,933 | Feb. 09, 1886 | H.J. Johnson | Mechanism for Regulating Steam-Engines | steam engine governors |
| 389,146 | Sep. 04, 1888 | N.T. Greene | Valve-gear for steam-engines | steam engine valve gear |
| 422,769 | Mar. 04, 1890 | N.T. Greene | Liberating valve-gear for engines | steam engine valve gear |
| 424,605 | Apr. 01, 1890 | N.T. Greene | Exhaust-valve for engines | steam engine valves |
| 425,219 | Apr. 08, 1890 | N.T. Greene | Exhaust-valve-gear for engines | steam engine valve gear |
| 439,349 | Oct. 28, 1890 | N.T. Greene | Slide-valve for steam-engines | steam engine valves |
| 444,699 | Jan. 13, 1891 | N.T. Greene | Safety valve-gear for steam-engines | steam engine valve gear |
| 495,221 | Apr. 11, 1893 | N.T. Greene | Steam-piston packing | steam engine packing |
