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JOHNSON ALLEN S

Overview
  • Total Patents
    12
About

JOHNSON ALLEN S has a total of 12 patent applications. Its first patent ever was published in 1909. It filed its patents most often in Canada, United States and Argentina. Its main competitors in its focus markets thermal processes, chemical engineering and furniture and games are JOHNSON ALLEN STARLING JR, WUXI UNMIXED CLEANSE EQUIPMENT CO LTD and FILTRETE BV.

Patent filings in countries

World map showing JOHNSON ALLEN Ss patent filings in countries
# Country Total Patents
#1 Canada 7
#2 United States 4
#3 Argentina 1

Patent filings per year

Chart showing JOHNSON ALLEN Ss patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnson Allen S Jr 7
#2 Johnson Allen S 4

Latest patents

Publication Filing date Title
CA1170999A Bag-type filter with air diffuser tubes of helical construction
CA1158041A Thermally insulated rotary kiln and method of making same
CA1146748A Apparatus and method for treating an aggregate material with a flowing gas
CA1151082A Bag-type filter apparatus with combination bag support and air diffuser
CA1151081A Bag-type filter apparatus with internal air diffuser
US1897905A Flower stand
US1087380A Ventilating apparatus for kitchens.
US951761A Ventilating system.
US948629A Ventilating system.