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EWESON ERIC W

Overview
  • Total Patents
    21
About

EWESON ERIC W has a total of 21 patent applications. Its first patent ever was published in 1941. It filed its patents most often in United States and Canada. Its main competitors in its focus markets environmental technology, basic materials chemistry and medical technology are WILLISCH HANNES, KNEER FRANZ and ENVIROKURE INCORPORATED.

Patent filings in countries

World map showing EWESON ERIC Ws patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 8

Patent filings per year

Chart showing EWESON ERIC Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Eweson Eric W 21

Latest patents

Publication Filing date Title
CA1015873A Apparatus for making organic fertilizer
US3930799A Apparatus for making organic fertilizer
US3138447A Multistage process of producing organic fertilizer
US2695218A Apparatus for making organic fertilizer
US2680069A Method and apparatus for making organic fertilizer
US2593867A Apparatus for making organic fertilizer
US2474833A Method for making organic fertilizer
US2410487A Smoker's article
US2379629A Device for manipulating contact lenses
US2392811A Fertilizer and making same
US2347941A Smoker's device
US2401819A Culture of yeast
US2330695A Eye washing device
US2360051A Toilet device
CA438294A Smoker's article
CA530095A Method and apparatus for making organic fertilizer
CA758302A Hair trimming implement
CA420451A Eye washing device
CA418973A Toilet device
CA500245A Method for making organic fertilizer