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For the Inventor, By the Inventor

Fraser, MI, United States of America

Kevin L Perry

USPTO Granted Patents = 16 

Average Co-Inventor Count = 4.0

ph-index = 6

Forward Citations = 71(Granted Patents)


Company Filing History:

goldMedal16 out of 31,002 
 
Gm Global Technolgoy Operations, Inc.
 patents

Years Active: 2012-2018

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16 patents (USPTO):Explore Patents
1. 9863922 - [object Object] (2018-01-09),
2. 9714625 - System and method for controlling ammonia levels in a selective catalytic reduction catalyst using a nitrogen oxide sensor (2017-07-25),
3. 9188071 - System and method for controlling an engine based on ammonia storage in multiple selective catalytic reduction catalysts (2015-11-17),
4. 9180408 - Fuel efficient ammonia generation strategy for lean-burn engines utilizing passive NH3-SCR for the control of NOx (2015-11-10),
5. 8919099 - System and method for determining an ammonia generation rate in a three-way catalyst (2014-12-30),
6. 8745969 - Methods for engine exhaust NOx control using no oxidation in the engine (2014-06-10),
7. 8539760 - [object Object] (2013-09-24),
8. 8448423 - Method and apparatus for controlling operation of a spark-ignition direct-injection engine (2013-05-28),
9. 8393140 - Passive ammonia-selective catalytic reduction for NOx control in internal combustion engines (2013-03-12),
10. 8381512 - Passive ammonia-selective catalytic reduction for NOx control in internal combustion engines (2013-02-26),
11. 8302379 - Passive ammonia-selective catalytic reduction for NOx control in internal combustion engines (2012-11-06),
12. 8291695 - Method and apparatus for controlling exhaust emissions in a spark-ignition direct-injection engine (2012-10-23),
13. 8225599 - Method for supplying reductant to an aftertreatment system (2012-07-24),
14. 8216521 - Method and apparatus for ammonia formation in a catalytic converter (2012-07-10),
15. 8109081 - Hydrocarbon selective catalytic reduction for NOx control with gasoline-fueled spark ignition engines using engine-out hydrocarbons (2012-02-07),

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