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SIEBERT & KUEHN DR

Overview
  • Total Patents
    19
About

SIEBERT & KUEHN DR has a total of 19 patent applications. Its first patent ever was published in 1909. It filed its patents most often in Germany, WIPO (World Intellectual Property Organization) and Austria. Its main competitors in its focus markets measurement, electrical machinery and energy and telecommunications are ELSTER AG, RHODES & SON LTD B and BRONKHORST HIGH TECH BV.

Patent filings per year

Chart showing SIEBERT & KUEHN DRs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Siebert Christian 4
#2 Trinter Frank 3
#3 Siebert Christian Dipl Ing 3
#4 Sommer Juergen Dipl Ing 2
#5 Siebert Werner 2
#6 Donner Arno 2
#7 Arno Donner 1
#8 Schuetzenmeister Karl 1
#9 Siebert Dipl-Ing Hans 1
#10 Siebert Hans Dipl-Ing 1

Latest patents

Publication Filing date Title
WO9853278A1 Device for determining the flow rate of a medium, including a liquid or a gas
DE4225026A1 Flow control switch
DE4111001A1 Fluid flow speed measuring arrangement - contains sensor coil, valve wheel with magnetic vanes downstream of fixed rotor which induces rotary fluid motion
DE3940280A1 Device for determining the flow rate of a flow medium
DE3907489A1 Device for monitoring the liquid level in a container
DE3907490A1 Device for monitoring leaks in pipework filled with a fluid
US4906807A Apparatus for monitoring the flow of fluid media in a pipeline
DE3801770A1 Device for monitoring the flow of liquid or gaseous media
DE2605642A1 Flow monitor for fluid and gaseous media - has valve which operates vane moving in gap of inductive proximity switch