Ahn; Sang Yeoul

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ahn; Sang Yeoul.The latest application filed is for "method and apparatus for detecting defects of fuel cell membrane-electrode assembly".

Company Profile

0.14.15

Ahn; Sang Yeoul - Seoul 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
Method and apparatus for detecting defects of fuel cell membrane-electrode assembly Grant 9,653,743 - Ahn , et al. May 16, 2	2017-05-16
Device for manufacturing fuel cell stack components Grant 9,490,489 - Ahn November 8, 2	2016-11-08
Pinhole inspection system and apparatus for membrane electrode assembly of fuel cell Grant 9,470,666 - Park , et al. October 18, 2	2016-10-18
Gas diffusion layer for fuel cell vehicle with improved operational stability Grant 9,450,254 - Hong , et al. September 20, 2	2016-09-20
System and method for activating fuel cells Grant 9,252,439 - Ahn , et al. February 2, 2	2016-02-02
Method And Apparatus For Detecting Defects Of Fuel Cell Membrane-electrode Assembly App 20160013500 - Ahn; Sang Yeoul ; et al.	2016-01-14
Pinhole Detection System Of Fuel Cell App 20150357660 - Ahn; Sang Yeoul ; et al.	2015-12-10
Pinhole detection system of fuel cell Grant 9,170,216 - Ahn , et al. October 27, 2	2015-10-27
Device For Manufacturing Fuel Cell Stack Components App 20140305596 - AHN; Sang Yeoul	2014-10-16
Pinhole Detection System Of Fuel Cell App 20140119499 - Ahn; Sang Yeoul ; et al.	2014-05-01
System for detecting pin hole of fuel cell stack parts Grant 8,654,920 - Ahn , et al. February 18, 2	2014-02-18
Pinhole Inspection System And Apparatus For Membrane Electrode Assembly Of Fuel Cell App 20140030815 - Park; Ji Yeon ; et al.	2014-01-30
System And Method For Activating Fuel Cell App 20130252124 - Ahn; Sang Yeoul ; et al.	2013-09-26
System and method for activating fuel cell Grant 8,455,121 - Lim , et al. June 4, 2	2013-06-04
Apparatus and method for non-destructive measurement of bending stiffness of GDL for fuel cell Grant 8,316,721 - Hong , et al. November 27, 2	2012-11-27
System For Detecting Pin Hole Of Fuel Cell Stack Parts App 20120140880 - Ahn; Sang Yeoul ; et al.	2012-06-07
Apparatus And Method For Non-destructive Measurement Of Bending Stiffness Of Gdl For Fuel Cell App 20110314928 - Hong; Bo Ki ; et al.	2011-12-29
Pinhole Detection System Of Fuel Cell App 20110122991 - Ahn; Sang Yeoul ; et al.	2011-05-26
System And Method For Activating Fuel Cell App 20100129689 - Lim; Tae Won ; et al.	2010-05-27
Gas Diffusion Layer for Fuel Cell Vehicle with Improved Operational Stability App 20100129696 - Hong; Bo Ki ; et al.	2010-05-27
Fuel cell system Grant 7,332,235 - Jeon , et al. February 19, 2	2008-02-19
Method of preparing membrane-electrode-gasket assemblies for polymer electrolyte fuel cells Grant 7,056,612 - Oh , et al. June 6, 2	2006-06-06
Fuel cell stack mock-up and pressure measuring instrument of fuel cell balance of plant using fuel cell stack mock-up App 20060083975 - Ahn; Sang-Yeoul	2006-04-20
Fuel cell system App 20060051649 - Jeon; Ui-Sik ; et al.	2006-03-09
Series type air supply system for fuel cell-powered vehicles App 20060046116 - Min; Kyoung-Doug ; et al.	2006-03-02
Method of preparing membrane-electrode-gasket assemblies for polymer electrolyte fuel cells App 20030121603 - Oh, In-Whan ; et al.	2003-07-03

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