Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D430137 | Audio amplifier having a digital display window | — | 2000-08-29 |
| 6037511 | Catalyst for dehydrogenating aromatic with carbon dioxide | Sang-Eon Park, Jong-San Chang, Min Seok Park, Chul Wee Lee, Jermim Noh | 2000-03-14 |
| 6034032 | Catalyst for dehydrogenating aromatic hydrocarbons with carbon dioxide | Sang-Eon Park, Jong-San Chang, Min Seok Park, Chul Wee Lee, Jermim Noh | 2000-03-07 |
| 6010982 | Sodium-intervened superconductor and its manufacturing method | Nam Hwi Hur, Jin Tae Kim, Jong-Chul Park | 2000-01-04 |
| 5972305 | Direct manufacturing method of hydrogen peroxide | Sang-Eon Park, Jung Whan Yoo, Woo Jin Lee, Jong-San Chang, Chul Wee Lee | 1999-10-26 |
| 5617507 | Speech segment coding and pitch control methods for speech synthesis systems | Chong R. Lee | 1997-04-01 |
| 5492885 | Mercury-thallium-barium-calcium-strontium-copper-oxide 1223 superconductor and method of making same | Yong-Hoon Hur, Jong-Chul Park | 1996-02-20 |
| 5231076 | Process for manufacturing a YBa.sub.2 Cu.sub.3 O.sub.x superconductor using infiltration-reaction technique | In-Ki Jeong, Doh Yoon Kim, Jong Chull PARK | 1993-07-27 |