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ZWICKY LTD

Overview
  • Total Patents
    19
About

ZWICKY LTD has a total of 19 patent applications. Its first patent ever was published in 1932. It filed its patents most often in United Kingdom, France and Canada. Its main competitors in its focus markets control, chemical engineering and transport are GA IND INC, FERNANDEZ J and R G DELAWARE INC.

Patent filings in countries

World map showing ZWICKY LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 10
#2 France 4
#3 Canada 2
#4 United States 2
#5 Germany 1

Patent filings per year

Chart showing ZWICKY LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Davis Albert Henry 6
#2 Henry Davis Albert 2
#3 Cordery Herbert James 2
#4 Spurin Leslie T 1
#5 Thomas Spurin Leslie 1
#6 Jean Zwicky 1
#7 Davis A 1

Latest patents

Publication Filing date Title
CA930608A Pumps
GB930349A Control of liquid distribution
GB893363A Filling nozzles with fluid flow control valves
FR1192558A Liquid supply pressure control
GB827293A Control of liquid supply pressure
GB798364A Edge filters
GB855068A Filters for liquids
GB818141A Delivery mechanism for tanks
GB779155A Tank filling nozzle
GB731082A Pressure control in liquid supply systems
US2559233A Aircraft refueling plant
GB592035A Refuelling and like plant, particularly for aircraft
GB480798A Improvements in and relating to filters
US2024753A Filter
CA437263A Aircraft refuelling plant