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POWER SPECIALTY CO

Overview
  • Total Patents
    172
About

POWER SPECIALTY CO has a total of 172 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets thermal processes, basic materials chemistry and chemical engineering are STEINMUELLER LEBRECHT, SUPERHEATER CO LTD and CHANTIERS NAVALS ET CHAUDRONNE.

Patent filings in countries

World map showing POWER SPECIALTY COs patent filings in countries
# Country Total Patents
#1 United States 64
#2 United Kingdom 42
#3 France 25
#4 Canada 24
#5 Germany 16
#6 Austria 1

Patent filings per year

Chart showing POWER SPECIALTY COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bell John E 21
#2 John Primrose 15
#3 Primrose John 10
#4 Foster Ernest H 7
#5 Canham Percy D 4
#6 Dowd Jr Wyllys E 3
#7 Keenan Jr Walter Francis 3
#8 Bell John Everett 2
#9 John Nelis Joseph 2
#10 Keenan Walter F Jr 2

Latest patents

Publication Filing date Title
GB299479A Improvements in and relating to bubble still trays for fractionating towers
GB280107A Improvements in and relating to boiler economizers
GB281587A Improvements in steam boilers
GB299401A Improvements in tube connectors
GB283032A Improved method and apparatus for heating and cracking oils
GB283031A Improvements in and relating to superheater boilers
GB263369A Improvements in and relating to furnaces
GB266166A Improvements in and relating to furnaces
GB265422A Improvements in and relating to furnaces
GB239208A Improvements in and relating to vapour separation and condensation particularly for use with oils
DE440153C Method and device for the separation and condensation of oil fumes
US1621112A Superheating arrangement for water-tube boilers
DE434286C Heating device for absorbing radiant heat from furnaces of steam boilers u. like
GB237222A Improvements in and relating to fluid heating apparatus
US1626874A Oil heater and method of operating same
US1630087A Superheater boiler
GB232594A Improvements in and relating to high pressure boilers
GB247763A Improvements in and relating to fluid heating apparatus
GB251404A Improved method of and apparatus for cracking oils
US1623805A Superheater boiler