Kevin L Perry

This inventor holds 16 USPTO granted patents and 2 published patent applications. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 2012-2018.

USPTO Granted Patents = 16 (Patent Applications = 2)

% Patents Active = 25.0

Average Co-Inventor Count = 4.0

ph-index = 6

Forward Citations = 71(Granted Patents)

Company Filing History:

16 out of 31,869

Gm Global Technolgoy Operations, Inc.

patents

Years Active: 2012-2018

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16 patents (USPTO):Sort by Forward CitationsExplore 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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