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SERVEL CANADA LTD

Overview
  • Total Patents
    16
About

SERVEL CANADA LTD has a total of 16 patent applications. Its first patent ever was published in 1966. It filed its patents most often in Canada and United States. Its main competitors in its focus markets electrical machinery and energy are ACHENBACH ERWIN, OSTRYAKOV I A and SANKT PETERBURGSKIJ G MORSKOJ.

Patent filings in countries

World map showing SERVEL CANADA LTDs patent filings in countries
# Country Total Patents
#1 Canada 15
#2 United States 1

Patent filings per year

Chart showing SERVEL CANADA LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Batteries

Top inventors

# Name Total Patents
#1 Wilke Milton E 10
#2 Warren Robert A 4
#3 Coleman Joseph J 4
#4 Kirkman Frederick J 3
#5 Musselman Robert K 2
#6 Bryant Norman R 1
#7 Loverude Thomas H 1
#8 Yacht Clifford J Vander 1

Latest patents

Publication Filing date Title
US3437528A Electrolyte release valve and vent for reserve battery
CA684785A Contact for use with cylindrical anodes
CA683223A Alkaline cell with zinc oxide-containing separator
CA769134A Reserve electric battery
CA633062A Alkaline cell with pre-assembled negative terminal
CA681770A Primary cell with slurry electrolyte-anode body
CA697727A Diaphragm valve for venting fluid
CA621154A Primary cell and battery
CA633015A Alkaline cell having controlled vents
CA805790A Magnesium batteries with improved cell seals and intercell connections and method of making the same
CA580758A Electric battery
CA825300A Electrolyte release valve and vent for reserve battery
CA653471A Club swing momentum indicator
CA626473A Primary cell and battery
CA711338A Reserve battery
CA635319A Reserve electric battery with combined electrode and separator member