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PARSONS C A & CO LTD

Overview
  • Total Patents
    602
About

PARSONS C A & CO LTD has a total of 602 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets engines, pumps and turbines, thermal processes and environmental technology are PARSONS & CO LTD C A, NOVATOME and JOINT STOCK COMPANY “AKME ENGINEERING”.

Patent filings in countries

World map showing PARSONS C A & CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 308
#2 France 109
#3 United States 83
#4 Germany 73
#5 Denmark 9
#6 Spain 9
#7 Switzerland 5
#8 Belgium 3
#9 Austria 2
#10 Australia 1

Patent filings per year

Chart showing PARSONS C A & CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hryniszak Waldemar 38
#2 Richardson Philip 30
#3 Martin Albert Edward 19
#4 Ritz Hugo Heinrich Ludolf 17
#5 Bowden Andrew Thomson 16
#6 Waldemar Hryniszak 16
#7 Horsley William Douglass 16
#8 Philip Richardson 10
#9 Kolb Paul 9
#10 Elliott Edward Rae 9

Latest patents

Publication Filing date Title
AU1233370A Improvements in and relating to dynamo-electric machines
GB1286254A Improvements in and relating to valves for controlling fluid flow
GB1283044A Improvements in and relating to steam turbines
GB1283355A Improvements in and relating to centrifugal separators
GB1285875A Improvements in and relating to control systems for a.c. generators
GB1281691A Improvements in rotor windings for dynamo-electric machines
GB1274664A Improvements in and relating to rotor windings of dynamo-electric machines
GB1272578A Improvements in and relating to feed water heaters and steam reheaters
GB1278261A Improvements in or relating to speed measurement and/or control systems
GB1245973A Improvements in and relating to locking devices for rotatable members
FR1543763A Liquid-cooled rotor for rotating electrical machines
GB1255471A Improvements in and relating to tubular heat exchangers
GB1196924A Improvements in and relating to Synchronous or Asynchronous Electrical Machines
GB1246801A Improvements in and relating to high intensity light sources
GB1145149A Improvements in and relating to synchronous alternating current generators
FR1532904A Improvements made to magneto-hydrodynamic devices
GB1195264A Improvements in and relating to Dynamo-Electric Machines
GB1165245A Improvements in and relating to Valves for the Control of Fluid Flow
DE1601617A1 Gas turbine plant
FR1528096A Magnetohydrodynamic device