Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8193198 | Uracil compounds and a herbicide comprising the same | Young Kwan Ko, Kun Hoe Chung, Jae Wook Ryu, Jae Chun Woo, Dong Wan Koo +8 more | 2012-06-05 |
| 6806229 | Herbicidally active pyridine sulfonyl urea derivatives | Suk-Jin Koo, Jin-Ho Cho, Jeong-su Kim, Seung-Hun Kang, Kyung-Goo Kang +3 more | 2004-10-19 |
| 6762305 | Herbicidally active pyridine sulfonyl urea derivatives | Suk-Jin Koo, Jin-Ho Cho, Jeong-su Kim, Seung-Hun Kang, Kyung-Goo Kang +3 more | 2004-07-13 |
| 6706917 | Preparing method of 2-phenylalkanoic acid derivatives | Hae Sung Chang, Young Kwan Ko, Jae Wook Ryu, Jae Chun Woo, Dong Wan Koo | 2004-03-16 |
| 6600048 | Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds | Hae Sung Chang, Young Kwan Ko, Jae Wook Ryu, Jae Chun Woo, Dong Wan Koo +1 more | 2003-07-29 |
| 6489268 | Highly selective herbicidal phenoxypropionic acid alkoxycarbonyl anilid compounds and method of preparing the same | Hae Sung Chang, Young Kwan Ko, Jae Wook Ryu, Jae Chun Woo, Dong Wan Koo +1 more | 2002-12-03 |
| 6486098 | Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compounds | Hae Sung Chang, Young Kwan Ko, Jae Wook Ryu, Jae Chun Woo, Dong Wan Koo +1 more | 2002-11-26 |
| 6222060 | Process for preparing o-(carboalkoxy)phenylmethanesulfonyl chloride derivatives | Young Kwan Ko, Dong Wan Koo, Hae Sung Chang, Jae Wook Ryu, Jae Chun Woo | 2001-04-24 |
| 5736628 | Benzenesulfonylurea derivatives | Young Kwan Ko, Jin-Seog Kim, Dong Whan Ku | 1998-04-07 |
| 5726127 | Thiophenesulfonylurea derivatives and herbicidal composition containing the same | Kyeong Yeol Yun, Jae Wook Ryu, Yeon Soo LEE, Seung Kyu Kang, In Taek Hwang | 1998-03-10 |
| 5461024 | Thiophenesulfonylurea derivatives | Dong Ju Jeon, Sang Soon Park, Jae Chun Woo, Tae Jun Kim | 1995-10-24 |
| 5461025 | Benzenesulfonylurea derivatives | Young Kwan Ko, Jin-Seog Kim, Dong Whan Ku | 1995-10-24 |
| 5461026 | Pyridine sulfonyl urea derivatives | Hae Sung Chang, Jae Wook Ryu, In Ho Jo | 1995-10-24 |
| 5278134 | Herbicidal pyridine derivatives and their salts of 3-(aminooxoacetyl)-2-(2-imidazolin-2-yl) | Hae Sung Chang, Dong Ju Jeon, Jae Wook Ryu, In Taek Hwang | 1994-01-11 |
| 5077423 | S-(N-alkoxycarbonyl, N-substituted)aminomethyl isothiourea derivative | Sung-Yeap Hong, Jae Wook Ryu, Jae Chun Woo | 1991-12-31 |