Inventor
SPIX THOMAS A
US27 patents
⚠️ This page may combine multiple inventors who share the name “SPIX THOMAS A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GM GLOBAL TECH OPERATIONS INC
11 patentsUS7562652B2Jul 21, 2009
Engine PCV system with hydrophobic, oleophobic membrane for air/oil separation
GM GLOBAL TECH OPERATIONS INC13 citations82
US7431023B2Oct 7, 2008
Engine PCV system with venturi nozzle for flow regulation
GM GLOBAL TECH OPERATIONS INC18 citations75
US8955500B2Feb 17, 2015
Positive crankcase ventilation system
GM GLOBAL TECH OPERATIONS INC5 citations73
US8561590B1Oct 22, 2013
Oil pan for an internal combustion engine
GM GLOBAL TECH OPERATIONS INC2 citations62
US7866304B2Jan 11, 2011
Engine fuel boil off management system
GM GLOBAL TECH OPERATIONS INC3 citations57
US8967110B2Mar 3, 2015
Engine front cover with rotational support insert
GM GLOBAL TECH OPERATIONS INC0 citations52
US9057295B2Jun 16, 2015
Positive crankcase ventilation system
GM GLOBAL TECH OPERATIONS INC0 citations51
US9080522B2Jul 14, 2015
Engine efficiency system for a vehicle and method of operating an engine efficiency system
GM GLOBAL TECH OPERATIONS INC1 citations49
US8899190B2Dec 2, 2014
Temperature dependent flow control for combustion engine piston squirters
GM GLOBAL TECH OPERATIONS INC0 citations41
US8905010B2Dec 9, 2014
Positive crankcase ventilation system for a two-cylinder engine
GM GLOBAL TECH OPERATIONS INC0 citations38
US9347345B2May 24, 2016
Internal combustion engines and oil containment systems thereof
GM GLOBAL TECH OPERATIONS INC0 citations36
SPIX THOMAS A
8 patentsUS8695339B2Apr 15, 2014
Blowby flow control system for a turbocharged engine
SPIX THOMAS A23 citations91
US8408190B2Apr 2, 2013
Air-oil separator for extracting oil from engine blowby gas
SPIX THOMAS A7 citations82
US8181634B2May 22, 2012
Engine including positive crankcase ventilation
SPIX THOMAS A10 citations76
US8887704B2Nov 18, 2014
Engine assembly with engine block-mounted air-oil separator and method of ventilating an engine crankcase
SPIX THOMAS A5 citations67
US8602008B2Dec 10, 2013
Positive crankcase ventilation system
SPIX THOMAS A2 citations60
US8585547B2Nov 19, 2013
System and method for preventing icing in positive crankcase ventilation systems
SPIX THOMAS A0 citations48
US8844506B2Sep 30, 2014
Positive crankcase ventilation system
SPIX THOMAS A0 citations39
US8505520B2Aug 13, 2013
Engine assembly including positive crankcase ventilation with oil surge protection
SPIX THOMAS A0 citations39
GM GLOBAL TECH OPERATIONS LLC
4 patentsUS9650989B2May 16, 2017
Dimpled surface features for radiated noise attenuation in engine front covers
GM GLOBAL TECH OPERATIONS LLC3 citations72
US9611769B2Apr 4, 2017
System and method for controlling airflow through a ventilation system of an engine when cylinders of the engine are deactivated
GM GLOBAL TECH OPERATIONS LLC1 citations52
US9739180B2Aug 22, 2017
Variable tensioning for engine camshaft drive
GM GLOBAL TECH OPERATIONS LLC0 citations41
US9739348B2Aug 22, 2017
Variable tensioner for cam drive
GM GLOBAL TECH OPERATIONS LLC0 citations40