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Si-Hyung Lim, Sumit Barthwal, "Water and Oil Ultra-Repellent Structure and Manufacturing Method Therefor," US 14/766,649, August 7, 2015
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Si-Hyung Lim, Janghyeon Lee, "Gas Concentration Apparatus Having Carbon Foam," US 9,737,236, August 22, 2017
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Sihyung Lim, "Method of Manufacturing Nano Gap Sensor using Residual Stress and Nano Gap Sensor Manufactured Thereby," US 9,683,956, June 20, 2017
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Sihyung Lim, Joon Ahn, Sumit Barthwal, "Oil Separator having Nanorod Surface Layer Inside," US 10,240,833, March 26, 2019
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Si-Hyung Lim, Janghyeon Lee, "Column for micro gas chromatography," US 10,551,361, Feb. 4, 2020
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Si Hyung Lim, Janghyeon Lee, Yeong Seok Lee, Ae Ran Song, "Sliding Type Replaceable Fluid Analysis Chamber Module," US 11,130,126, Sep. 28, 2021
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Si-Hyung Lim, Janghyeon Lee, Jun Suk Lee, "Micro Gas Chromatography System," US 11,906,490, Feb. 20, 2024