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WEFCO INC

Overview
  • Total Patents
    11
About

WEFCO INC has a total of 11 patent applications. Its first patent ever was published in 1949. It filed its patents most often in United States and Canada. Its main competitors in its focus markets basic materials chemistry, electrical machinery and energy and mechanical elements are ER FLUID DEV, ALUMINUM RES CORP and EARLE CLARENCE E.

Patent filings in countries

World map showing WEFCO INCs patent filings in countries
# Country Total Patents
#1 United States 8
#2 Canada 3

Patent filings per year

Chart showing WEFCO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Winslow Willis M 8
#2 Langan Ervin C 3
#3 Christie Howard W 2

Latest patents

Publication Filing date Title
CA1227943A Seed coating composition and method
US4493162A Seed coating composition and method
US4260027A Flail-type mulcher cultivator
US3660757A Flash tube potential indicator
US3047507A Field responsive force transmitting compositions
US2661596A Field controlled hydraulic device
US2663809A Electric motor with a field responsive fluid clutch
US2886151A Field responsive fluid couplings
US2661825A High fidelity slip control
CA654125A Electro-magnetic force transmitting particles in liquid
CA593038A Electro-fluid clutch