Learn more

DOLTER HENRI

Overview
  • Total Patents
    13
About

DOLTER HENRI has a total of 13 patent applications. Its first patent ever was published in 1898. It filed its patents most often in Canada, Switzerland and Spain. Its main competitors in its focus markets transport are VARNEY THEODORE, DUDDELL WILLIAM DU BOIS and ZHEJIANG WANGLONG RAIL TRANSIT FACILITIES CO LTD.

Patent filings in countries

World map showing DOLTER HENRIs patent filings in countries
# Country Total Patents
#1 Canada 3
#2 Switzerland 3
#3 Spain 3
#4 United Kingdom 2
#5 United States 2

Patent filings per year

Chart showing DOLTER HENRIs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport

Focus technologies

Top inventors

# Name Total Patents
#1 Dolter Henri 9
#2 Henri Dolter 1
#3 Mertens Gustav 1

Latest patents

Publication Filing date Title
GB190525283A Improvements in Electromagnetic Band Brakes for Vehicles.
US748053A Bar for collecting electricity for sectional circuits.
CA75718A Electric traction apparatus
US662921A Apparatus for electric traction.
GB189911776A Improvements in or in connection with Means for Supplying Current to Electrically Propelled Vehicles.
CA263701A Earth metal
CA259715A Earth metal manufacture