Inventor
GRIFFITHS JOHN M
US38 patents
⚠️ This page may combine multiple inventors who share the name “GRIFFITHS JOHN M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRUNSWICK CORP
32 patentsUS5009621AApr 23, 1991
Torque splitting drive train mechanism for a dual counterrotating propeller marine drive system
BRUNSWICK CORP73 citations95
US4872857AOct 10, 1989
Operation optimizing system for a marine drive unit
BRUNSWICK CORP95 citations95
US7267588B1Sep 11, 2007
Selectively lockable marine propulsion devices
BRUNSWICK CORP27 citations93
US7185599B1Mar 6, 2007
Jet drive propulsion system for a pontoon boat
BRUNSWICK CORP44 citations93
US6694955B1Feb 24, 2004
Marine engine with primary and secondary fuel reservoirs
BRUNSWICK CORP49 citations92
US6460504B1Oct 8, 2002
Compact liquid lubrication circuit within an internal combustion engine
BRUNSWICK CORP19 citations92
US6413131B1Jul 2, 2002
Air flow system for an outboard motor
BRUNSWICK CORP22 citations92
US6352456B1Mar 5, 2002
Marine propulsion apparatus with adjustable tiller handle
BRUNSWICK CORP54 citations92
US4939660AJul 3, 1990
Fuel conserving cruise system for a marine drive unit
BRUNSWICK CORP55 citations92
US4872859AOct 10, 1989
Lift and latch apparatus for an outboard motor
BRUNSWICK CORP25 citations92
US4861292AAug 29, 1989
Speed optimizing positioning system for a marine drive unit
BRUNSWICK CORP51 citations92
US4842559AJun 27, 1989
Position control system for a marine propulsion device
BRUNSWICK CORP28 citations92
US4836812AJun 6, 1989
Steering system for auxiliary marine engine
BRUNSWICK CORP34 citations92
US4383503AMay 17, 1983
Combustion chamber scavenging system
BRUNSWICK CORP28 citations92
US7182033B1Feb 27, 2007
Self-contained marine propulsion system for a pontoon boat
BRUNSWICK CORP34 citations91
US6299496B1Oct 9, 2001
Exhaust control system for a marine vessel
BRUNSWICK CORP36 citations87
US7291048B1Nov 6, 2007
Actuator device for a marine propulsion transmission
BRUNSWICK CORP17 citations84
US6960108B1Nov 1, 2005
Protective containment device for wires and hoses of an outboard motor
BRUNSWICK CORP16 citations84
US6808432B1Oct 26, 2004
Marine propulsion device with cooling system cover
BRUNSWICK CORP14 citations84
US6866022B1Mar 15, 2005
Throttle control handle with reduced required shifting force
BRUNSWICK CORP18 citations83
US4836151AJun 6, 1989
Two cycle engine with turbulence generator at reed valves
BRUNSWICK CORP21 citations81
US6551154B1Apr 22, 2003
Combined tell-tale fitting with water flushing attachment
BRUNSWICK CORP8 citations74
US5699763ADec 23, 1997
Air intake system for a marine engine
BRUNSWICK CORP8 citations73
US4836811AJun 6, 1989
Transom extension mounting assembly for outboard motors
BRUNSWICK CORP13 citations73
US4813897AMar 21, 1989
Combined trim, tilt and lift apparatus for a marine propulsion device
BRUNSWICK CORP16 citations73
US4481911ANov 13, 1984
Stratified-charge cross-flow scavenged two-stroke cycle engine
BRUNSWICK CORP12 citations73
US5988139ANov 23, 1999
Method and apparatus for controlling an internal combustion engine
BRUNSWICK CORP10 citations72
US5832888ANov 10, 1998
Thermostatic override switch for an automatic choke in an internal combustion engine
BRUNSWICK CORP16 citations72
US7175491B1Feb 13, 2007
Assembly system for a marine propulsion device
BRUNSWICK CORP5 citations63
US4898127AFeb 6, 1990
Two-stroke cycle engine with vacuum pulse balancing system
BRUNSWICK CORP6 citations63
US4964823AOct 23, 1990
Stern drive lift and trim system
BRUNSWICK CORP6 citations62
US5470263ANov 28, 1995
Method and apparatus for improving reverse thrust of a marine drive
BRUNSWICK CORP5 citations60