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WARDEN WILLIAM F

Overview
  • Total Patents
    17
About

WARDEN WILLIAM F has a total of 17 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets chemical engineering, thermal processes and environmental technology are SICHUAN WANKANG ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION TECH CO LTD, CHINTEK INSTR & EQUIPMENT CO LTD and LIANG KEJIAN.

Patent filings in countries

World map showing WARDEN WILLIAM Fs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 5
#3 United Kingdom 1

Patent filings per year

Chart showing WARDEN WILLIAM Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Warden William F 17

Latest patents

Publication Filing date Title
CA162551A Filter
US1140727A Oil-filter.
US1108037A Filter.
US1140726A Filter.
CA138994A Tank gauge
US925252A Ventilator.
CA113140A Ventilator
US925251A Ventilator-clip.
US905255A Ventilator.
US846074A Ventilator.
US829817A Ventilator.
US745939A Exhaust-head.
CA80716A Oil filter
US740957A Oil-filter.
CA77263A Oil filter
GB190113964A Improvements in Oil Filters
US671098A Oil-filtering apparatus.