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RINGSDORFF WERKE K G

Overview
  • Total Patents
    41
About

RINGSDORFF WERKE K G has a total of 41 patent applications. Its first patent ever was published in 1935. It filed its patents most often in Germany, Switzerland and France. Its main competitors in its focus markets electrical machinery and energy, transport and mechanical elements are MAX FROST, HOFFMANN ELEKTROKOHLE and MERSEN FRANCE AMIENS SAS.

Patent filings in countries

World map showing RINGSDORFF WERKE K Gs patent filings in countries
# Country Total Patents
#1 Germany 27
#2 Switzerland 6
#3 France 6
#4 Austria 1
#5 Spain 1

Patent filings per year

Chart showing RINGSDORFF WERKE K Gs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gutberlet Theodor 6
#2 G Ringsdorff-Werke K 6
#3 Schroeter Dr Fritz 3
#4 Stephan Dr Hans 2
#5 Neukirchen Dr Johannes 2
#6 Majewski Rudolf 2
#7 Ringsdorff Hans 2
#8 Wiese Friedrich 2
#9 Schweiger Luitpold 2
#10 Wolfframm Hans 1

Latest patents

Publication Filing date Title
ES161548A1 Procedure for the obtaining of bodies by agglutination.
DE742090C Process for making rammed contacts
DE745975C Method for reinforcing carbon brushes
DE741639C Pressure element for brush holder
DE871312C Brake linings, in particular brake pads made of sintered synthetic carbon
DE747265C Body for use at very high temperatures
DE720320C Layered carbon brush
DE721678C Pressure adjustment device for brush holder
DE713084C Method of manufacturing a plastic brush holder
DE727615C Process for the production of carbon brushes
DE728072C Grinding iron for electric vehicles
DE705948C Abrasive brush for electrical machines
DE717124C Damping device for measuring devices
DE712867C Brush holders for electrical machines
DE699436C Brush holders for electrical machines
DE742385C Mechanical and electrical connection between a carbon slip ring attached to the rotor shaft of an electrical machine and the rotor winding of this machine by means of a connecting bolt
DE712728C Carbon grinding piece for pantographs of electric vehicles
DE713160C Process for the production of braking compounds from synthetic rubber
DE713770C Method for casting one material onto another, especially a metal onto a non-metallic material
DE688290C Carbon grinding piece for pantograph