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PARSONS & CO LTD C A

Overview
  • Total Patents
    219
About

PARSONS & CO LTD C A has a total of 219 patent applications. Its first patent ever was published in 1933. It filed its patents most often in Canada, Switzerland and United States. Its main competitors in its focus markets engines, pumps and turbines, thermal processes and electrical machinery and energy are PARSONS C A & CO LTD, LJUNGSTROEMS ANGTURBIN AB and THOMSON HOUSTON ATELIERS.

Patent filings in countries

World map showing PARSONS & CO LTD C As patent filings in countries
# Country Total Patents
#1 Canada 110
#2 Switzerland 80
#3 United States 14
#4 United Kingdom 12
#5 Germany 3

Patent filings per year

Chart showing PARSONS & CO LTD C As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Richardson Philip 19
#2 Hryniszak Waldemar 17
#3 Limited C A Parsons Company 14
#4 Waldemar Hryniszak 13
#5 Ritz Hugo H L 10
#6 Horsley William D 9
#7 Bowden Andrew T 8
#8 Heinrich Ludolf Ritz Hugo 7
#9 Watson William G 7
#10 Ritz Heinrich H L 5

Latest patents

Publication Filing date Title
GB1153762A Improvements in and relating to Temperature Measuring Devices
US3524086A Magnetohydrodynamic apparatus
GB1000316A Improvements relating to heat exchangers
DE1126408B Thermal power plant
GB821289A Improvements in or relating to removal of fission products from nuclear reactors
GB733483A Improvements in and relating to gas turbines
GB730571A Improvements in and relating to combustion apparatus and especially to such systems as are applicable to control of combustion in gas turbine plant, industrial furnaces and the like
GB716440A Improvements in and relating to rotary regenerative heat exchangers
GB724177A Mechanical power producing combustion turbine plants
GB724176A Improvements in and relating to combustion turbine plants
GB716132A Heat exchanger sealing devices
GB688706A Improvements in and relating to methods of fusion welding
GB626275A Improvements in or relating to flame tubes for gas turbine combustion chambers
US2132509A Turbine
US2040640A Hollow turbine blade
US2047555A Manufacture of hollow turbine blades
GB420532A Improvements in and relating to the manufacture of blades for turbines, compressors and the like
CA551014A Combustion turbines
CA586161A Regenerative heat exchanger, especially for combustion turbines
CA652366A Dynamo-electric machines