Inventor
CHENG SHI-WAI S
US14 patents
⚠️ This page may combine multiple inventors who share the name “CHENG SHI-WAI S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN MOTORS CORP
7 patentsUS6835224B2Dec 28, 2004
Open end diesel particulate trap
GEN MOTORS CORP58 citations95
US7152396B2Dec 26, 2006
Reductant distributor for lean NOx trap
GEN MOTORS CORP50 citations92
US6770252B2Aug 3, 2004
Rolling regeneration diesel particulate trap
GEN MOTORS CORP41 citations92
US4924829AMay 15, 1990
Apparatus for torch jet assisted spark ignition
GEN MOTORS CORP38 citations90
US6764532B1Jul 20, 2004
Method and apparatus for filtering exhaust particulates
GEN MOTORS CORP14 citations83
US6837201B1Jan 4, 2005
Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines
GEN MOTORS CORP7 citations73
US7104238B2Sep 12, 2006
Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines
GEN MOTORS CORP1 citations51
GM GLOBAL TECH OPERATIONS INC
5 patentsUS7334401B2Feb 26, 2008
Apparatus for sensing particulates in a gas flow stream
GM GLOBAL TECH OPERATIONS INC33 citations92
US8011177B2Sep 6, 2011
Exhaust particulate filter
GM GLOBAL TECH OPERATIONS INC13 citations83
US7524360B2Apr 28, 2009
Method and apparatus for filtering exhaust particulates
GM GLOBAL TECH OPERATIONS INC17 citations83
US8043572B2Oct 25, 2011
Rolling regeneration diesel particulate trap
GM GLOBAL TECH OPERATIONS INC5 citations62
US7716921B2May 18, 2010
Exhaust particulate filter
GM GLOBAL TECH OPERATIONS INC2 citations62