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HUNT A H LTD

Overview
  • Total Patents
    70
About

HUNT A H LTD has a total of 70 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United Kingdom, Canada and France. Its main competitors in its focus markets electrical machinery and energy, machines and audio-visual technology are SAN DENSHI KOGYO KK, WESTERMANN WOLFGANG and NUINTEK CO LTD.

Patent filings in countries

World map showing HUNT A H LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 38
#2 Canada 11
#3 France 10
#4 United States 5
#5 Denmark 3
#6 Belgium 2
#7 Germany 1

Patent filings per year

Chart showing HUNT A H LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Grouse Richard Alfred 15
#2 Alfred Grouse Richard 5
#3 Rogers James 3
#4 James Rogers 2
#5 Planer George Victor 2
#6 Grouse R A 1
#7 Beckett F R 1
#8 George Bettridge Frederick Leo 1
#9 Whiley Cecil 1
#10 Booth Frank Oliver 1

Latest patents

Publication Filing date Title
GB684529A Improvements in the manufacture of capacitors
GB690764A Improvements in and relating to eelctrical capacitors
GB684443A Improvements in the manufacture of capacitors
GB675079A Improvements in or relating to the manufacture of wound capacitors from metallised dielectrics
GB691308A Improvements in or relating to electrical circuits and circuit components
GB668425A Improvements in or relating to electrical capacitors
GB692614A Improvements in or relating to the metallisation of the surfaces of dielectric material
DE829631C Electric capacitor and process for its manufacture
GB680432A Improvements in or relating to electrical capacitor filter units
GB686750A Improvements in or relating to the manufacture of electrical capacitors
GB657341A Improvements in or relating to the manufacture of ceramic compositions and of electrical apparatus containing the same
GB647573A Improvements in or relating to metallised paper capacitors
GB635537A Improvements in or relating to the manufacture of electrical capacitors
GB624074A Improvements in or relating to the manufacture of electrical capacitors
GB619364A Improvements in or relating to the manufacture of metallised paper electrical capacitors
GB626495A Improvements in or relating to trimmer capacitors
US2549966A Apparatus for the manufacture of metalized paper for electric condensers
GB595808A Improvements in or relating to apparatus for the manufacture of metallised paper forelectric condensers
GB589728A Improvements in or relating to electrical capacitors
US2463765A Manufacture of electrical condensers