Hwang; Jih-Dar
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hwang; Jih-Dar.The latest application filed is for "method and system for preparing caprolactam".
- Hwang; Jih-Dar - Taipei TW
- Hwang; Jih-Dar - Taipei City TW
| Patent | Date |
|---|---|
| Method and system for preparing caprolactam Grant 9,902,700 - Kung , et al. February 27, 2 | 2018-02-27 |
| Method And System For Preparing Caprolactam App 20170121289 - Kung; Yung-Shun ; et al. | 2017-05-04 |
| Method and system for preparing caprolactam Grant 9,518,024 - Kung , et al. December 13, 2 | 2016-12-13 |
| Method And System For Preparing Caprolactam App 20160237038 - Kung; Yung-Shun ; et al. | 2016-08-18 |
| Method for continuously preparing carboxylic acid ester Grant 9,012,679 - Hwang , et al. April 21, 2 | 2015-04-21 |
| Method For Continuously Preparing Carboxylic Acid Ester App 20130303796 - Hwang; Jih-Dar ; et al. | 2013-11-14 |
| Recycling system for hydroxylamine formation and oximation Grant 7,785,549 - Hwang , et al. August 31, 2 | 2010-08-31 |
| Process for production of cyclohexanone oxime Grant 7,671,236 - Hwang , et al. March 2, 2 | 2010-03-02 |
| Recycling system for hydroxylamine formation and oximation App 20080167495 - Hwang; Jih-Dar ; et al. | 2008-07-10 |
| Process for production of cyclohexanone oxime App 20080167496 - Hwang; Jih-Dar ; et al. | 2008-07-10 |
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