Learn more

ELPRO AG

Overview
  • Total Patents
    135
About

ELPRO AG has a total of 135 patent applications. Its first patent ever was published in 1985. It filed its patents most often in Germany, German Democratic Republic and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets transport, electrical machinery and energy and measurement are BICC HOLDINGS GMBH, KONRAD TAEUBER and PFISTERER SRL.

Patent filings per year

Chart showing ELPRO AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gerlach Horst Dr Ing 27
#2 Gerlach Horst 17
#3 Kunze Wolfgang Dipl Ing 12
#4 Noack Wolfgang 10
#5 Kunze Wolfgang 7
#6 Kaesch Dietmar 4
#7 Balzer Dietrich Prof Dr Ing 4
#8 Wolf Heinz Dr Ing 4
#9 Geitner Gert-Helge Dr-Ing 4
#10 Pfeiffer Martin 3

Latest patents

Publication Filing date Title
DE19654621C1 Method of uniform load distribution in sub-systems of electrically powered railway vehicles
DE19654960A1 Uniform load distribution procedure for electrified vehicles i.e. rail-vehicles, sub-stations
DE19654620A1 Process for uniform load distribution in public or private distribution networks
DE19617048C1 Control method for power regulator of electric motor drives
WO9623343A1 Overvoltage protector
DE19501994A1 Trains and locomotives position monitoring system
DE19501993A1 Method and device for the safety-relevant recording and processing of status information of decentralized or central control devices of guideway elements along a guideway on traction vehicles
DE4423787C1 Process and device for train-controlled changes of direction in single-track operation
DE4405559A1 Circuit arrangement for a rectifier substation for supplying traction current to DC tracts
DE4402022A1 Overvoltage protection device for electrified railway
DE4402023A1 Overvoltage protection device for electrified rail track
DE4342845A1 Internal resistance reducing circuit for MOSFET half-bridge driver
RU2075358C1 Method of controlling metal speed in multistand mill for continuous hot rolling with provision of minimum traction efforts in metal taking into account non-uniform heating of metal by its length
DE4332888A1 Method and arrangement for determining and reporting the electrical status of voltage breakdown fuses
DE4331431C1 Traffic control device for controlling the driving operation and the traffic flow for the rail-bound traffic
DE4329228A1 Method and circuit arrangement for electronically igniting fluorescent lamps
DE4325074A1 Process for controlling the rolling stock speed in a multi-stand continuous hot rolling mill to ensure minimal longitudinal tensile forces
DE4319366A1 d.c. high-speed circuit-breaker using hybrid technology
DE4307607A1 Circuit arrangement for uniform current distribution when connecting partial rectifier groups in parallel
LTIP326A Circuit arrangement for electric rectifing substation