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ELFA ELEKTROTECHNISCHE FABRIK

Overview
  • Total Patents
    22
About

ELFA ELEKTROTECHNISCHE FABRIK has a total of 22 patent applications. Its first patent ever was published in 1921. It filed its patents most often in Germany. Its main competitors in its focus markets electrical machinery and energy are HEBEI BAOKAI ELECTRIC CO LTD, KAREL KESL and XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD.

Patent filings in countries

World map showing ELFA ELEKTROTECHNISCHE FABRIKs patent filings in countries
# Country Total Patents
#1 Germany 22

Patent filings per year

Chart showing ELFA ELEKTROTECHNISCHE FABRIKs patent filings per year from 1900 to 2020

Focus industries

Latest patents

Publication Filing date Title
DE461494C Installation circuit breaker with trip-free release
DE451596C Installation circuit breaker
DE465503C Overcurrent switch in plug form
DE464688C Installation circuit breaker
DE449296C Fusible link with variable cross-section and with over-molding made of insulating material
DE431131C Installation self-switch in plug form
DE436940C Installation circuit breaker
DE447847C Switching device for automatic switch with several consecutive interruption points
DE447846C Electromagnetic switch
DE451670C Switchgear with magnetic arc discharge
DE453474C Self-switch with luminous material
DE453082C Electromagnetic overcurrent switch
DE412490C Fusible link with variable cross-section and with over-molding made of insulating material
DE464426C Automatic switch as a replacement for electrical fuses
DE433111C Electrical circuit breaker to protect electrical lines and machines
DE452747C Automatic off switch, especially in the form of a safety plug
DE422627C Fuse
DE400146C Circuit breaker with a conductor connected in parallel to the tripping device with a high positive temperature coefficient
DE323789C Electrical snap-action switch with a rotating cover that acts as a toggle
DE465504C Circuit breaker for electrical lines