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ELECTRONIC SWITCHGEAR LONDON L

Overview
  • Total Patents
    13
About

ELECTRONIC SWITCHGEAR LONDON L has a total of 13 patent applications. Its first patent ever was published in 1956. It filed its patents most often in United Kingdom, Canada and United States. Its main competitors in its focus markets measurement and control are ANALAQ LTD, COMPANHIA UNIAO FABRIL S A R L and SIENCO INC.

Patent filings in countries

World map showing ELECTRONIC SWITCHGEAR LONDON Ls patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 Canada 1
#3 United States 1

Patent filings per year

Chart showing ELECTRONIC SWITCHGEAR LONDON Ls patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Measurement
#2 Control

Top inventors

# Name Total Patents
#1 Sproule Robert Andrew 6
#2 Warmoth Dennis 3
#3 Warmoth Denis 2
#4 Andrew Sproule Robert 1
#5 Sproule Robert A 1

Latest patents

Publication Filing date Title
GB1163781A Improvements in or relating to Electrolytic Conductivity Measuring and Regulating Apparatus
GB1148091A Improvements in or relating to electrolytic conductivity measuring and control systems
GB1121128A Improvements in or relating to liquid conductivity measuring cells
GB1123355A Improvements in or relating to liquid conductivity measuring cells
GB1011490A Improvements in or relating to electrolytic conductivity measuring cells
GB984419A Improvements in or relating to electric measuring arrangements
GB1009721A Improvements in or relating to electric measuring arrangements
GB984418A Improvements in or relating to electric liquid conductivity measuring arrangements
GB927556A Improvements in or relating to liquid conductivity measuring cells
US3028546A Liquid conductivity measuring cell
GB922709A Improvements in or relating to liquid conductivity measuring cells
GB869226A Improvements in or relating to liquid conductivity measuring cells
CA651863A Liquid conductivity measuring cell