Inventor · disambiguated record
Hae Sung Chang
Also filed as: CHANG HAE S · CHANG HAE SUNG
9 granted patents·2 pending applications·17 citations·filing 1991–2003
81Inventor score
Files withDONGBU HANNONG CHEMICAL CO LTD3KOREA RES INST CHEM TECH3LG LIFE SCIENCES2KIM DAE W1KOREAN RES INST OF CHEMICAL TE1
Top patents by PatentIndex Score
11 records- 0170US6806229B1Herbicidally active pyridine sulfonyl urea derivativesLG LIFE SCIENCES·Filed 2000·Granted Oct 19, 2004·8 cites·10 claims
- 0259US6222060B1Process for preparing o-(carboalkoxy)phenylmethanesulfonyl chloride derivativesKOREAN RES INST OF CHEMICAL TE·Filed 2000·Granted Apr 24, 2001·3 cites·13 claims
- 0352US6600048B2Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compoundsDONGBU HANNONG CHEMICAL CO LTD·Filed 2002·Granted Jul 29, 2003·1 cites·2 claims
- 0450US6762305B2Herbicidally active pyridine sulfonyl urea derivativesLG LIFE SCIENCES·Filed 2003·Granted Jul 13, 2004·0 cites·2 claims
- 0544US6486098B1Herbicidal phenoxypropionic acid N-alkyl-N-2-fluorophenyl amide compoundsDONGBU HANNONG CHEMICAL CO LTD·Filed 1999·Granted Nov 26, 2002·3 cites·17 claims
- 0640US5461026APyridine sulfonyl urea derivativesKOREA RES INST CHEM TECH·Filed 1992·Granted Oct 24, 1995·2 cites·33 claims
- 0740US2005043180A1Optically active herbicidal (r)-phenoxypropionic acid-n-methyl-n-2-fluorophenyl amidesFiled 2001·Application pending·0 cites
- 0839US6706917B1Preparing method of 2-phenylalkanoic acid derivativesKOREA RES INST CHEM TECH·Filed 2000·Granted Mar 16, 2004·0 cites·6 claims
- 0939US6489268B1Highly selective herbicidal phenoxypropionic acid alkoxycarbonyl anilid compounds and method of preparing the sameDONGBU HANNONG CHEMICAL CO LTD·Filed 2000·Granted Dec 3, 2002·0 cites·19 claims
- 1032US2005261499A1Process for preparing (r)-aryloxypropionic acid ester derivativesKIM DAE W·Filed 2003·Application pending·0 cites
- 1127US5278134AHerbicidal pyridine derivatives and their salts of 3-(aminooxoacetyl)-2-(2-imidazolin-2-yl)KOREA RES INST CHEM TECH·Filed 1991·Granted Jan 11, 1994·0 cites·23 claims
Join the waitlist — get patent alerts
Get an alert when Hae Sung Chang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →