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Patent applications and USPTO patent grants for Kim; Kwang-Han.The latest application filed is for "manufacturing method of hexafluoropropylene oxide with high yield".
Patent | Date |
---|---|
Crosslinked polyvinyl alcohol-based polymer membrane and a process of its preparation Grant 7,449,112 - Lee , et al. November 11, 2 | 2008-11-11 |
Manufacturing method of hexafluoropropylene oxide with high yield Grant 7,405,312 - Lee , et al. July 29, 2 | 2008-07-29 |
Manufacturing method of hexafluoropropylene oxide with high yield App 20080091052 - Lee; Soo Bok ;   et al. | 2008-04-17 |
Fluorine-containing amphoteric polymer for surface coating and preparation method thereof Grant 7,132,489 - Lee , et al. November 7, 2 | 2006-11-07 |
Novel crosslinked polyvinyl alcohol-based polymer membrane and a process of its preparation App 20050218069 - Lee, Soo-Bok ;   et al. | 2005-10-06 |
Fluorine-containing amphoteric polymer for surface coating and preparation method thereof App 20050096444 - Lee, Soo-Bok ;   et al. | 2005-05-05 |
Esterfication process for production of fluoroalkyl (meth)acrylate by pervaporation-aided membrane reactor App 20050085661 - Lee, Soo-Bok ;   et al. | 2005-04-21 |
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