Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9670657 | Water-saving toilet | — | 2017-06-06 |
| 6998736 | Apparatus and method for controlling driving of linear motor | Kyung-Bum Heo | 2006-02-14 |
| 6863506 | Reciprocating compressor | Kyeong-Bae Park, Jong-Tae Heo, Ki-Won Noh, Ki-Chul Choi | 2005-03-08 |
| 6647559 | Flushing unit for a toilet | — | 2003-11-18 |
| 4833834 | Camshaft belt grinder | Henry B. Patterson, Jr., Eberhard E. Wasserbaech | 1989-05-30 |