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BROOKHIRST IGRANIC LTD

Overview
  • Total Patents
    118
About

BROOKHIRST IGRANIC LTD has a total of 118 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United Kingdom and Canada. Its main competitors in its focus markets electrical machinery and energy, packaging and shipping and machines are CUTLER HAMMER INC, BROOKHIRST SWITCHGEAR LTD and YAMADA ELECTRIC MFG.

Patent filings in countries

World map showing BROOKHIRST IGRANIC LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 117
#2 Canada 1

Patent filings per year

Chart showing BROOKHIRST IGRANIC LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Charbonneau Allan Poe 5
#2 Waldorf Joseph Francis 4
#3 Hartop Robert William 3
#4 Rzepecki Marian Michael 3
#5 Kinsella James Joseph 2
#6 Pearson Robert 2
#7 Robinson Douglas Burton 2
#8 Mukai Roy Asahi 2
#9 Henderson Bernard Arthur 1
#10 Ellington Vincent 1

Latest patents

Publication Filing date Title
GB1334571A Circuit for stabilising electricity supply reactive power
GB1314611A Plunger operating selector mechanism
GB1196055A Improvements in or relating to Thermal Overload Relays.
GB1213496A Improvements in or relating to electrical contractors
GB1235114A Pushbutton assemblies
GB1141197A Power supply control circuit
GB1164811A Logic Memory Circuit
GB1086146A Frequency-sensitive systems and phase-sensitive systems
GB1134051A Electrical distribution apparatus
GB1120116A Electro-mechanical device for producing an operation signal on a machine
GB1056514A Current-sensing devices
GB1079012A Improvements in or relating to electric switches
GB970972A Invention relating to bottom sheet wrap inserting machines
GB968320A Power supply for inductive loads
GB1030319A Improvements in or relating to brake assemblies
GB971286A Improvements in or relating to operation and fault indication for unidirectional conducting devices
GB974277A Electric switch unit
GB956824A Improvements in or relating to the moulding of contact carrier assemblies
GB975755A Improvements in or relating to electronic inverter circuits
GB968603A Improvements in and relating to electric motor control systems