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HEMENWAY JOHN F

Overview
  • Total Patents
    29
About

HEMENWAY JOHN F has a total of 29 patent applications. Its first patent ever was published in 1916. It filed its patents most often in United States and Canada. Its main competitors in its focus markets consumer goods and mechanical elements are MONOTUB PLC, HUANGSHI HIGH NEW TECHNOLOGY ENTPR ACCELERATOR DEV CO LTD and FINISHTECH LTD.

Patent filings in countries

World map showing HEMENWAY JOHN Fs patent filings in countries
# Country Total Patents
#1 United States 19
#2 Canada 10

Patent filings per year

Chart showing HEMENWAY JOHN Fs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Consumer goods
#2 Mechanical elements

Focus technologies

# Technology
#1 Laundering textiles
#2 Nails

Top inventors

# Name Total Patents
#1 Hemenway John F 29
#2 Speer Fitzhugh C 1

Latest patents

Publication Filing date Title
CA175860A Clothes wringer
US1220121A Clothes-wringer.
US1224541A Automatic pressure-roll release for clothes-wringers.
US1211701A Clothes-wringer.
CA175857A Clothes wringer
US1226331A Clothes-wringer.
US1220120A Clothes-wringer.
US1220117A Pressure-roll release for clothes-wringers.
US1220119A Pressure-release for clothes-wringers.
US1284101A Pressure-screw for clothes-wringers.
US1220118A Pressure-release for clothes-wringers.
CA175701A Clothes wringer
CA178512A Clothes wringer
CA177874A Clothes wringer release
CA178753A Clothes wringer
CA175854A Wringer mechanism
CA175700A Clothes wringer
CA175702A Clothes wringer
CA175853A Clothes wringer mechanism
US1220115A Automatic pressure-release for clothes-wringers.