Inventor
Cheryl J Stark
Inventor
Canton, MI, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Tprimary
Y02TClimate change mitigation technologies related to transportation36%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general29%
Y02ATechnologies for adaptation to climate change14%
F02DControlling combustion engines7%
G01FMeasuring volume, volume flow, mass flow or liquid level7%
G01MTesting static or dynamic balance of machines or structures7%
PatentTitleYear
9,133,750'Method and system for verifying the operation of an SCR catalyst'20159,080,494'Particulate filter monitoring methods and systems'20158,839,602'Non-methane hydrocarbon conversion efficiency diagnostic for a diesel after-treatment system'20148,286,419'Exhaust diagnostic systems and methods for resetting after operation with poor reductant quality'20128,047,046'Systems and method for monitoring urea level'20116,439,039'Method to verify cold start spark retard'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2015Based in Canton, MI, US· patent location history
2011–2015Patents assigned to GM GLOBAL TECH OPERATIONS INC (5)· patent assignee history
2012–2015Patents assigned to STARK CHERYL J (4)· patent assignee history
2012–2015Patents assigned to GORDON SCOTT R (2)· patent assignee history
2012–2015Patents assigned to LEVIJOKI STEPHEN PAUL (2)· patent assignee history
2014–2015Patents assigned to KOWALKOWSKI JANEAN E (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GM GLOBAL TECH OPERATIONS INC | 5 | 2011–2015 |
| STARK CHERYL Jself | 4 | 2012–2015 |
| GORDON SCOTT R | 2 | 2012–2015 |
| KOWALKOWSKI JANEAN E | 2 | 2014–2015 |
| LEVIJOKI STEPHEN PAUL | 2 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Canton, MI, US | 6 | 2002–2015 |