Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404228 | Method of producing adipic acid | Hyeon-Gook Kim | 2025-09-02 |
| 12312453 | Polyol composition, method for preparing polyurethane foam using the same, and polyurethane foam prepared by the method | — | 2025-05-27 |
| 12275004 | Catalyst for synthesizing dimethylether or methylacetate from synthetic gas, method for preparing the same, and method for preparing dimethylether or methylacetate using the same | Jin Woo Choung, Young Gul Hur, Jong Wook Bae, Hyun Seung Jung | 2025-04-15 |
| 12195921 | Double-crosslinked cellulose nanofiber film with high strength and high transmittance and method for manufacturing the same | Jin Woo Choung, Jungmok You, Kangyun Lee | 2025-01-14 |
| 12180393 | Polyurethane adhesive composition for carbon emission reduction and method of preparing same | Jin Woo Choung | 2024-12-31 |
| 12129328 | Low-carbon polyurethane foam composition for automobile interior material and preparation method therefor | Jin Woo Choung | 2024-10-29 |
| 11767285 | Catalyst for synthesizing dimethylether or methylacetate from synthetic gas, method for preparing the same, and method for preparing dimethylether or methylacetate using the same | Jin Woo Choung, Young Gul Hur, Jong Wook Bae, Hyun Seung Jung | 2023-09-26 |
| 11752491 | Catalyst for conversion of carbon dioxide to methanol by hydrogenation, and method for preparing the same | Jin Woo Choung, Jong Wook Bae, Tae Yeol Goag | 2023-09-12 |
| 11718720 | Composite cellulose nanosheet with excellent transparency and strength and manufacturing method thereof | Jin Woo Choung, Jungmok You, Kangyun Lee, Youngho Jun, Dabum Kim +1 more | 2023-08-08 |
| 11648539 | Catalyst for gasoline synthesis from dimethyl ether, method for preparing the same, and method for preparing gasoline using the same | Jin Woo Choung, Young Gul Hur, Jong Wook Bae, Jong Jin Kim | 2023-05-16 |
| 11072762 | Eco-friendly cleaning agent for metal member and method of preparing the same | — | 2021-07-27 |
| 10829439 | Method for producing adipamide as intermediate for production of raw material for bio-based nylon | Na Kyong Yun, Ha Eun Jeong, Sung Wan Jeon | 2020-11-10 |
| 10711009 | Method of preparing d-glucaro-1,4:6,3-dilactone | — | 2020-07-14 |
| 10611716 | Method of preparing adipic acid | — | 2020-04-07 |
| 10414710 | Method for manufacturing adipic acid using biomass | Ha Eun Jeong, Na Kyong Yun, Sung Wan Jeon, So-Hyun Kwon, Na Ra Shin +2 more | 2019-09-17 |
| 9580561 | Manufacturing method of poly lactic acid stereocomplex using solvent casting method | Do Suck Han, Byeong Uk Nam | 2017-02-28 |
| 9504992 | Solid acid catalyst for preparing a monosaccharide and method of preparing a monosaccharide from seaweed using the same | — | 2016-11-29 |
| 9447012 | Synthetic process of adipic acid | Young Gyu Kim, Nara Shin | 2016-09-20 |
| 9227904 | Method for producing glucaric acid | Si-Hwan Kim, Young Gyu Kim, Na Ra Shin | 2016-01-05 |
| 9102647 | Method for preparing lactide using an ionic solvent | Si-Hwan Kim, Do Suck Han, Ji Yeon SEO | 2015-08-11 |
| 9096709 | Preparation method of flexible polylactide stereocomplex and the compound thereof | Do Suck Han, Soo Hyun Kim, Young Mee Jung | 2015-08-04 |
| 8889797 | Preparation method of flexible polylactide stereocomplex and the compound thereof | Do Suck Han, Soo Hyun Kim, Young Mee Jung | 2014-11-18 |
| 8759545 | Method of preparing lactide from lactate | Si-Hwan Kim, Jiyoun Seo, Do Suck Han | 2014-06-24 |
| 8673600 | Method and apparatus for producing lactic acid | Si-Hwan Kim, Jiyoun Seo, Do Suck Han | 2014-03-18 |
| 8378027 | Manufacturing method of polylactic acid composite composition | Do Suck Han | 2013-02-19 |