Inventor
HOLMES MICHAEL
GB27 patents
⚠️ This page may combine multiple inventors who share the name “HOLMES MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUCAS IND PLC
8 patentsUS5237504AAug 17, 1993
Method of and apparatus for detecting misfire
LUCAS IND PLC51 citations92
US4915079AApr 10, 1990
Adaptive control system for an internal combustion engine and method of operating an internal combustion engine
LUCAS IND PLC26 citations92
US4893600AJan 16, 1990
Adaptive control for an internal combustion engine
LUCAS IND PLC27 citations92
US4843556AJun 27, 1989
Method and apparatus for controlling an internal combustion engine
LUCAS IND PLC30 citations88
US4899282AFeb 6, 1990
Method and apparatus for controlling an internal combustion engine
LUCAS IND PLC21 citations82
US4896639AJan 30, 1990
Method and apparatus for engine control and combustion quality detection
LUCAS IND PLC22 citations82
US5592388AJan 7, 1997
Method of and apparatus for analyzing internal combustion engine speed data
LUCAS IND PLC12 citations71
US4558684ADec 17, 1985
Internal combustion engine coil-type ignition control
LUCAS IND PLC10 citations71
DEVRIES DOUGLAS F
5 patentsUS8627819B2Jan 14, 2014
Portable ventilator system
DEVRIES DOUGLAS F40 citations97
US8522780B2Sep 3, 2013
Portable ventilator system
DEVRIES DOUGLAS F33 citations96
US8297279B2Oct 30, 2012
Portable ventilator system
DEVRIES DOUGLAS F31 citations96
US8683997B2Apr 1, 2014
Portable ventilator system
DEVRIES DOUGLAS F28 citations92
US8156937B2Apr 17, 2012
Portable ventilator system
DEVRIES DOUGLAS F35 citations92
EAVOR TECH INC
4 patentsUS11661821B2May 30, 2023
Drilling fluid composition and method for cooling in high temperature formations
EAVOR TECH INC4 citations74
US12140028B2Nov 12, 2024
Cooling for geothermal well drilling
EAVOR TECH INC4 citations66
US12379138B2Aug 5, 2025
Mitigating fluid loss or inflow in a closed-loop geothermal system
EAVOR TECH INC0 citations51
US12209775B2Jan 28, 2025
Forming high efficiency geothermal wellbores
EAVOR TECH INC0 citations49