List of steam technology patents

Belgian patents

• , 1986, Boiler fed water heater - has flue gas closed-circuit heat exchanger contg. pure water with self-regulating operation

  British patents

• , 1897, Improvements in means for providing for the free circulation of air in steam cylinders when the pistons are running and the steam cut off
• , 1899, Improvements in feed water purifiers and heaters for steam generators
• , 1899, Improvement in rotary steam engines
• , 1899, Improvements in steam generators
• , 1901, An improvement in starting valves for compound steam engines
• , 1901, Improvements in valves for use in compound locomotives and other compound engines
• , 1905, Improvements relating to the working of compound engines and in regulator valves therefor
• , 1906, Improvements in valve gear for locomotives or similar coupled steam engines
• , 1907, Improvements in locomotive superheaters
• , 1907, Combined spark arrester and ash ejector for locomotive engines
• , 1914, Improvements in and relating to power systems
• , 1919, Improvements in or relating to fireless steam locomotives and engines
• , 1925, Improvements in closed cycle steam power installations
• , 1936, Improvements in or relating to steam power plants comprising feedwater heaters and hot-water accumulators
• , 1936, Improvements in or relating to steam plants including hot-water accumulators
• , 1940, Improvements in or relating to plant for operating fireless locomotives
• , 1941, Improvements in or relating to steam generators
• , 1949, Improvements in or relating to the conversion of fired locomotives into fireless locomotives
• , 1949, Improvements in or relating to apparatus for electrically heating high-pressure steam generators or high-pressure steam accumulators
• , 1950, Improvements in or relating to fireless locomotives having high pressure steam accumulators
• , 1950, Improvements in or relating to charging cranes for fireless locomotives
• , 1950, Improvements in or relating to throttle valves for high-pressure steam accumulator fireless locomotives
• , 1950, Improvements in or relating to the arrangement of controls in the cabs of fireless locomotives
• , 1950, Improvements in or relating to high pressure steam accumulator locomotives
• , 1955, Fireless steam-driven vehicle
• , 1962, Solid fuel grates for locomotive fire boxes
• , 1963, Means for supplying solid fuel to locomotive fire boxes

  Canadian patents

• , 1992, Electrical steam locomotive

  French patents

• , 1988, Removable furnace body, burning poor-grade fuel, for an industrial generator

  German patents

• , 1990, Blast pipe for steam locomotive - has control systems for varying pipe opening
• , 1994, Feedwater-preheater construction for preheating temperatures above 100 deg C for steam generators, in particular locomotive-type boilers
• , 1999, Steam locomotive with steam storage boiler coupled to running gear, and used for shunting and industrial purposes

  Japanese patents

• , 1996, Rotary steam engine

  Russian patents

• , 2011, Method of operating steam locomotive tandem compound steam engine

  US patents

• , 1984, Coal-fired steam locomotive
• , 1987, Mobile coal-fired fluidized bed power unit
• , 2011, Steam boiler with radiants