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SWEETMAN WILLIAM G

Overview
  • Total Patents
    15
About

SWEETMAN WILLIAM G has a total of 15 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and machine tools are PENGO INC, MOHAUPT HENRY H and BELL WILLIAM T.

Patent filings in countries

World map showing SWEETMAN WILLIAM Gs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 2

Patent filings per year

Chart showing SWEETMAN WILLIAM Gs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Sweetman William G 15
#2 Mcculloug Ira J 1
#3 Mccullough Otis J 1

Latest patents

Publication Filing date Title
US3026939A Explosive-actuated well tool anchor
US3076507A Chemical cutting method and apparatus for use in wells
US2935944A Explosive cutting tool
US2918125A Chemical cutting method and apparatus
US2796833A Perforating devices
US2761383A Non-expendible gun for use in jet perforating
US2761384A Device for cutting a pipe inside of a well
US2629325A Jet type perforating unit
US2708408A Well perforating device
US2679380A Apparatus for advancing well bores by explosives
US2745345A Apparatus for releasing threaded pipe couplings
US2669928A Perforating device for wells
US2595615A Initiating device for suspended explosive charges
CA691318A Explosive-actuated well tool anchor
CA608519A Method and apparatus for cutting inside of a well