Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11540688 | Handy-stick type vacuum cleaner | Tae Woon Lim, Jin Ho Lee, Yun Won Jung | 2023-01-03 |
| 11317774 | Robot cleaner | Min Ro Yun | 2022-05-03 |
| 11304576 | Robot cleaner, station and cleaning system | Jae Youl Jeong, Sin Ae Kim, Woo Jin Na | 2022-04-19 |
| 10320186 | Display drive chip | Myoung Soo Kim | 2019-06-11 |
| 10292552 | Vacuum cleaner | Tae Woon Lim, Dong-hun Yoo, Seok Bong Baek | 2019-05-21 |
| 9661966 | Vacuum cleaner | Joung-soo Park, Ki-man Kim, Dong-Jun KIM, Seok Bong Baek, Suzuki Naruhiko +5 more | 2017-05-30 |
| 9247854 | Vacuum cleaner | Joung-soo Park, Ki-man Kim, Dong-Jun KIM, Seok Bong Baek, Suzuki Naruhiko +5 more | 2016-02-02 |
| 8759514 | Method for separation of HMX and RDX | Byoung-Min Lee, Youn-Woo Lee, Jung-Seob Shim | 2014-06-24 |
| 8752236 | Steam vacuum cleaner | Jang-keun Oh | 2014-06-17 |
| 8729261 | Recrystallization method of fine spherical RDX particle | Byoung-Min Lee, Youn-Woo Lee, Joo-Seung Chae | 2014-05-20 |
| 8697886 | Di(aminoguanidium) 4,4′,5,5′-tetranitro-2,2′-biimidazole, and preparation method thereof | Jin-Seuk Kim, Seung Hee Kim | 2014-04-15 |
| 8158788 | Method for the nitration of 4,6-dihydroxy-2-methylpyrimidine | Eun Mee Goh, Jin-Seuk Kim, Jin Rai Cho | 2012-04-17 |
| 7921507 | Heating apparatus and cleaner having the same | Jang-keun Oh | 2011-04-12 |
| 7854782 | Vacuum cleaner | Jang-keun Oh, Seung-Yong Cha, Min-ha Kim, Hyun Ju Lee | 2010-12-21 |
| 7829729 | 1-glycidyl-3,3-dinitroazetidine containing explosive moiety and preparation method thereof | Young-Hwan Kown, Jin-Seuk Kim | 2010-11-09 |
| 7785381 | Dust collecting apparatus with combined compacting and filter cleaning for a vacuum cleaner | Jang-keun Oh, Jung-gyun Han | 2010-08-31 |
| 7549190 | Nozzle assembly of vacuum cleaner | Jang-keun Oh, Dong-houn Yang | 2009-06-23 |
| 6526199 | Arrayed waveguide grating wavelength division multiplexer provided with alignment waveguides and apparatus for aligning the same | Hyung-Seung Song, Yeong Gyu Lee | 2003-02-25 |
| 6480663 | Optical fiber for optical amplifier | Jong Heo, Yong Beom Shin, Sun-Tae Jung | 2002-11-12 |
| 6442308 | Optical wavelength multiplexer/demultiplexer with uniform loss | Dong-Kyoon Han | 2002-08-27 |
| 6434292 | Bidirectional optical wavelength multiplexer/divider | Dong-Kyoon Han | 2002-08-13 |
| 6384390 | Apparatus for forming thin film using microwave and method therefor | Sun-Tae Jung, Dong Wook Shin | 2002-05-07 |
| 6347177 | Optical fiber for light amplifier | Jong Heo, Dong-Chin Lee, Se-Ho Park, Sun-Tae Jung | 2002-02-12 |
| 6278814 | 1.times.N optical wavelength-division demultiplexer alignment apparatus and 1.times.N optical wavelength-division demultiplexer therefor | Hyung-Seung Song, Yeong Gyu Lee | 2001-08-21 |
| 6272277 | Optical fiber for light amplifier | Jong Heo, Yong Beom Shin, Se-Ho Park, Sun-Tae Jung | 2001-08-07 |