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SMIT & WILLEM & CO NV

Overview
  • Total Patents
    242
About

SMIT & WILLEM & CO NV has a total of 242 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United Kingdom, Switzerland and France. Its main competitors in its focus markets electrical machinery and energy, machine tools and consumer goods are ALBERT F DORMEYER, BASTIAN JUERGEN and TRANSFORMATOREN UNION AG.

Patent filings in countries

World map showing SMIT & WILLEM & CO NVs patent filings in countries

Patent filings per year

Chart showing SMIT & WILLEM & CO NVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Willem Smit Co'S Transformator 16
#2 Jacques Lisser 8
#3 Frowein Egbertus Adrianus 3
#4 Frowein E A 1
#5 Willem Smit Co S Transformator 1
#6 Hallo Herman Sijbrand 1
#7 Hoftijier P 1
#8 Frowein Eg Ad 1
#9 Wildeboer Jan 1
#10 Kuyper C E M De 1

Latest patents

Publication Filing date Title
GB1081638A A band having transverse ridges
GB1094618A Tank accommodating electrical apparatus and device for absorbing sound emitted thereby
DE1227142B Device for noise reduction in transformers and reactors
GB1022339A Three-phase transformer units
GB1018027A Improvements in and relating to apparatus for converting direct voltage into a single-phase of a three-phase alternating voltage
GB1005120A Improvements in and relating to chokes for high tension and high power
GB1011375A Improvements in and relating to regulating transformers
GB957937A Cyclically transposed winding for high current strengths for use in a transformer ora choking coil
DE1216422B Boiler for a transformer or a reactor
GB978053A Improvements in and relating to transformers or choke-coils for high voltages and to a method for the manufacture thereof
GB972028A Improvements in and relating to disc-coils for transformers or choking-coil windings for high current intensities
DE1189197B High voltage transformer or reactor
GB947119A Improvements in and relating to rectifying devices for welding purposes
DE1209225B Device for remote control of an alternating current welding device via the welding cable
GB916626A Improvements in and relating to tanks for transformers or choking coils for high voltages and of large power
GB945434A Improvements in and relating to connecting devices for the secondary winding of a welding transformer
DE1122190B Connection device for the secondary winding of a welding transformer
GB951692A Improvements in and relating to transformer loop-windings
DE1245488B Disc coil winding for transformers
GB927885A Improvements in and relating to transformer loop-windings