Lee; Kyoung Hwang

Patent Applications and Registrations

Patent applications and USPTO patent grants for Lee; Kyoung Hwang.The latest application filed is for "braille actuator and braille outputting device using same".

Company Profile

1.5.4

Lee; Kyoung Hwang - Gyeonggi-do KR
Lee; Kyoung-Hwang - Gwangju KR
Lee; Kyoung-Hwang - Gyeonggi-city KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Braille actuator and braille outputting device using same Grant 10,424,223 - Lee , et al. Sept	2019-09-24
Braille Actuator And Braille Outputting Device Using Same App 20180357924 - LEE; Kyoung Hwang ; et al.	2018-12-13
Fuel cell separator and fuel cell stack and reactant gas control method thereof Grant 10,074,858 - Oh , et al. September 11, 2	2018-09-11
Fuel cell separator and fuel cell stack and reactant gas control method thereof Grant 9,876,237 - Oh , et al. January 23, 2	2018-01-23
Fuel Cell Separator And Fuel Cell Stack And Reactant Gas Control Method Thereof App 20160254552 - OH; Sung-Jin ; et al.	2016-09-01
Fuel Cell Separator And Fuel Cell Stack And Reactant Gas Control Method Thereof App 20160197361 - OH; Sung-Jin ; et al.	2016-07-07
Fuel cell separator and fuel cell stack and reactant gas control method thereof Grant 9,343,756 - Oh , et al. May 17, 2	2016-05-17
Fuel Cell Separator And Fuel Cell Stack And Reactant Gas Control Method Thereof App 20090169930 - Oh; Sung-Jin ; et al.	2009-07-02

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