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KALFHAUS REINHARD

Overview
  • Total Patents
    17
About

KALFHAUS REINHARD has a total of 17 patent applications. Its first patent ever was published in 1973. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets electrical machinery and energy, environmental technology and control are INNO-TECH CO LTD, SHANGHAI TUITUO TECH CO LTD and APPULSE POWER INC.

Patent filings in countries

World map showing KALFHAUS REINHARDs patent filings in countries

Patent filings per year

Chart showing KALFHAUS REINHARDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kalfhaus Reinhard 17
#2 Schiller Christoph 1
#3 Angenendt Hans-Joachim Dipl In 1

Latest patents

Publication Filing date Title
DE102009043878A1 Method for short-term auxiliary energy supply of onboard energy storage, such as rechargeable battery or battery of vehicle on-board electrical system, involves measuring charge condition of on-board energy storage
DE102004043609A1 DC converter
DE19848540A1 Circuit layout and method for operating a single- or multiphase current inverter connects an AC voltage output to a primary winding and current and a working resistance to a transformer's secondary winding and current.
DE19800105A1 Current-voltage converter and associated control loop
DE19526350A1 Device and method for heating at least one electronic system
DE19515210A1 Switched-mode power supply, in particular a power regenerator
DE19505417A1 SEPIC switching power supply
WO8907853A1 Active filter
US4344125A System for precise regulation of the output voltage or current of a push-pull inverter having large variations of input voltage
EP0050676A1 Method and device to accurately regulate the input symmetry of a push-pull converter by large variations of the input voltage
DE2916833A1 Push=pull chopped voltage regulator - maintains steady output voltage by comparing voltage-time ratios of two conductive periods of switching transistors