Inventor · disambiguated record
Dennis Hartley
Also filed as: HARTLEY DENNIS
4 granted patents·63 citations·filing 1975–1978
78Inventor score
Files withCOAL INDUSTRY PATENTS LTD4
Top patents by PatentIndex Score
4 records- 0180US4155594AMethod of and apparatus for steering a mining machineCOAL INDUSTRY PATENTS LTD·Filed 1977·Granted May 22, 1979·23 cites·13 claims
- 0274US4072349ASteering of mining machinesCOAL INDUSTRY PATENTS LTD·Filed 1976·Granted Feb 7, 1978·20 cites·18 claims
- 0360US3954299ALongwall mining machine with pivotal body adjustmentCOAL INDUSTRY PATENTS LTD·Filed 1975·Granted May 4, 1976·10 cites·9 claims
- 0451US4245739AApparatus for controlling a conveyor drive upon conveyor chain breakageCOAL INDUSTRY PATENTS LTD·Filed 1978·Granted Jan 20, 1981·10 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →