Learn more

HENNEL GMBH & CO KG HANS

Overview
  • Total Patents
    15
About

HENNEL GMBH & CO KG HANS has a total of 15 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Germany. Its main competitors in its focus markets audio-visual technology and measurement are EARGO INC, NIPPON ATSUDENKI KK and SIGMAELTEC CO LTD.

Patent filings in countries

World map showing HENNEL GMBH & CO KG HANSs patent filings in countries
# Country Total Patents
#1 Germany 15

Patent filings per year

Chart showing HENNEL GMBH & CO KG HANSs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hennel Hans G 9
#2 Hennel Hans Gerhard 3
#3 G Hennel Hans 1
#4 Runge Armin 1

Latest patents

Publication Filing date Title
DE2935559A1 Loudspeaker housing to reduce effect of electrodynamic resonance - has helmholtz aperture tuned to same frequency as resonance peak
DE2836090A1 Supply unit for loudspeaker box - has at least three loudspeakers and current supply unit with power pack with DC output
DE2836091A1 Loudspeaker power consumption display - has lamps indicating when overload switch in speaker channel is operating
DE2836089A1 Multiple loudspeaker switching circuit - connects amplifiers to loudspeakers in preprogrammable combinations
DE2738759A1 Loudspeaker box with several loudspeakers - has optical indicator of AF power measured by circuit connected across input
DE2738526B1 Speaker housing
DE2738126A1 Loudspeaker cabinet for placing on shelf - has direct radiation tweeter mounted in support, with its axis perpendicular to cabinet front wall
DE2738132A1 Overload protection for loudspeaker assemblies - incorporates bimetal strip and uses heater in series with loudspeaker coil
DE2738127A1 Loudspeaker cabinet for placing on shelf - has each tweeter with manually operated controller for direct and indirect radiation components
DE2652949A1 Compound loudspeaker cabinet - has one bass and four treble loudspeakers in lower and upper portions respectively
DE2627292A1 Three speaker loudspeaker cabinet - has HF and mid-frequency units mounted on common base plate with terminal block
DE2547648A1 Removable front panel for loudspeaker cabinet - has edges engaging in slot around front of cabinet
DE2547649B1 Loudspeaker with circular retaining springs - has kinks in spring allowing retention in loudspeaker housing without using special tools
DE2525705A1 Loudspeaker enclosure with indirectly-radiating HF units - has adjustable multi speaker unit for improved ambience simulation
DE2451475A1 Linearisation circuit for electro-acoustic transducer - makes use of network tuned to disturbance frequency of system