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TECHNICAL OIL TOOL CORP LTD

Overview
  • Total Patents
    17
About

TECHNICAL OIL TOOL CORP LTD has a total of 17 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering, machines and measurement are DRILLING & SERVICE UK LTD, RASMUSSEN CHESTER A and DOWNHOLE PRODUCTS PLC.

Patent filings in countries

World map showing TECHNICAL OIL TOOL CORP LTDs patent filings in countries
# Country Total Patents
#1 United States 17

Patent filings per year

Chart showing TECHNICAL OIL TOOL CORP LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines
#3 Measurement

Top inventors

# Name Total Patents
#1 Oswald Suter 7
#2 Culbertson Joe W 4
#3 Abs Alfred J 4
#4 De Lacy Joseph H 2
#5 Jones Harry H 1
#6 Wallace Jr John H 1
#7 Brady James J 1
#8 Lake Francis W 1
#9 Bunker Frank S 1
#10 Barnett Arthur R 1

Latest patents

Publication Filing date Title
US3160464A Rate of penetration and weight recorder
US3076966A Rate of penetration and weight recorder
US3009355A Drilling rate recorder
US2829443A Inclination and directional recorder
US2781581A Chart reading device
US2706860A Pivot suspension for well survey instruments
US2770887A Directional inclination recording apparatus
US2775043A Inclination recording instrument
US2606793A Tool guide
US2235572A Sealing device
US2170527A Centering device for drift recording instruments
US2122026A Shock absorber for drift recording instruments
US2126740A Drift recording apparatus
US2109690A Drift recording apparatus
US1928644A Drift measuring and recording apparatus
US2166472A Drift recorder
US2155552A Wellhole inclinometer