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.
# | 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 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Mechanical elements | |
#3 | Machines | |
#4 | Engines, pumps and turbines | |
#5 | Transport |
# | Technology | |
---|---|---|
#1 | Earth drilling | |
#2 | Pistons and sealings | |
#3 | Construction of roads | |
#4 | Unspecified technologies | |
#5 | Rotary pistons | |
#6 | Clutches and brakes | |
#7 | Unspecified technologies | |
#8 | Ships |
# | 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 |
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 |