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A Z INT TOOL CO

Overview
  • Total Patents
    40
About

A Z INT TOOL CO has a total of 40 patent applications. Its first patent ever was published in 1968. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets civil engineering, mechanical elements and machines are COMPLETION TOOL, HALIFAX TOOL CO LTD and RUBBERATKINS LTD.

Patent filings in countries

World map showing A Z INT TOOL COs patent filings in countries
# Country Total Patents
#1 United States 13
#2 United Kingdom 8
#3 Canada 4
#4 Norway 4
#5 China 3
#6 Brazil 2
#7 Germany 2
#8 France 2
#9 Ireland 2

Patent filings per year

Chart showing A Z INT TOOL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bailey Thomas F 21
#2 Campbell John 8
#3 Shah Nehal M 6
#4 Campbell John Edward 5
#5 Kagler Jr Edmond 4
#6 Campbell John E 3
#7 Shirley Kirk R 2
#8 Sanford Lawrence 2
#9 Medders Weldon 2
#10 Campbeu John Edward 1

Latest patents

Publication Filing date Title
GB8718646D0 Drilling apparatus and cutter
US4722615A Drilling apparatus and cutter therefor
US4646826A Well string cutting apparatus
US4660863A Casing patch seal
CA1206872A Method of and apparatus for cutting and recovering of submarine surface casing
US4550781A Method of and apparatus for cutting and recovering of submarine surface casing
US4533003A Drilling apparatus and cutter therefor
GB1516491A Well drilling method and apparatus therefor
US4080115A Progressive cavity drive train
US3983936A Method of and apparatus for cutting and recovering of submarine surface casing
US3984991A Anchor and method of setting anchor
US4054040A Telescoping torque transmission apparatus
US3848667A Sheared pipe cutter
US3608652A Underwater drilling apparatus
US3621910A Method of and apparatus for setting an underwater structure