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Patent applications and USPTO patent grants for Yi; Soyeon.The latest application filed is for "device and method for measuring fine particle concentration".
Patent | Date |
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Device and method for measuring fine particle concentration Grant 8,327,692 - Cho , et al. December 11, 2 | 2012-12-11 |
Device and method for measuring fine particle concentration Grant 8,256,273 - Cho , et al. September 4, 2 | 2012-09-04 |
Device And Method For Measuring Fine Particle Concentration App 20100332148 - Cho; Young-Ho ;   et al. | 2010-12-30 |
Device And Method For Measuring Fine Particle Concentration App 20100319437 - CHO; Young-Ho ;   et al. | 2010-12-23 |
Device and method for measuring fine particle concentration Grant 7,784,332 - Cho , et al. August 31, 2 | 2010-08-31 |
Device and method for measuring fine particle concentration App 20070205747 - Cho; Young-Ho ;   et al. | 2007-09-06 |
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