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JOSEPH FRANCIS O BRIEN

Overview
  • Total Patents
    43
About

JOSEPH FRANCIS O BRIEN has a total of 43 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United Kingdom, Germany and United States. Its main competitors in its focus markets electrical machinery and energy, consumer goods and audio-visual technology are JOSEF EISERT, GLW ELEKTROTECH BAUTEILE and TAEJU IND INC.

Patent filings in countries

World map showing JOSEPH FRANCIS O BRIENs patent filings in countries
# Country Total Patents
#1 United Kingdom 41
#2 Germany 1
#3 United States 1

Patent filings per year

Chart showing JOSEPH FRANCIS O BRIENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 O'Brien Joseph Francis 1

Latest patents

Publication Filing date Title
US3469822A Portable enclosure
GB588980A Adapter unit for electric wiring systems
GB586779A Reverse current relay
GB601669A Improvements in or relating to means for controlling the interconnection of two d.c.electric sources
GB600814A Connection means for electrical conductors
GB600848A Improvements relating to conductor units for electric wiring systems
GB583935A Conductor unit for electric wiring systems
GB586850A Electricity conductor unit
GB575686A Locking means for electrical connectors
GB575623A End closure means for electric wiring units
GB569194A Feed section unit for electric wiring systems
GB570658A Polarized outlet section for electric wiring system
GB561728A Electricity conductor unit
GB563894A Connector unit for electric wiring system
GB561843A Electricity conductor unit
GB560032A Electrical wiring system
GB560146A Electricity conductor unit
GB559266A Electricity conductor unit for wiring systems
GB559291A Improvements in and relating to electricity contact devices
GB558681A Feed unit for electric wiring system