Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7998234 | Vacuum cleaner with removable dust collector, and methods of operating the same | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +14 more | 2011-08-16 |
| 7987551 | Vacuum cleaner | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +15 more | 2011-08-02 |
| 7973261 | Cooling structure for plasma lighting system | Young Bok Son, Kwang Won Lee | 2011-07-05 |
| 7935159 | Dust collecting device for vacuum cleaner | Kie Tak Hyun, Young Bok Son, Kyeong Seon Jeong, Il Joong Kim | 2011-05-03 |
| 7935162 | Dust collecting device for vacuum cleaner | Kie Tak Hyun, Young Bok Son, Kyeong Seon Jeong, Il Joong Kim | 2011-05-03 |
| 7882592 | Vacuum cleaner | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +14 more | 2011-02-08 |
| 7842112 | Cyclone collector | Kie Tak Hyun, Young Bok Son, Hyoung-Joo Cho, Kyeong Seon Jeong | 2010-11-30 |
| 7785396 | Vacuum cleaner with removable dust collector, and methods of operating the same | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +14 more | 2010-08-31 |
| 7770253 | Vacuum cleaner with removable dust collector, and methods of operating the same | Gun Ho Ha, Jin-Wook Seo, Chang Ho Yun, Jin Young Kim, Chang-Hoon Lee +14 more | 2010-08-10 |
| 7764482 | Vitamin ion generator | Seong Hwan Lee, Ok Chun Hyun | 2010-07-27 |
| 7753976 | Dust collecting device for vacuum cleaner | Kie Tak Hyun, Young Bok Son, Kyeong Seon Jeong, Il Joong Kim | 2010-07-13 |
| 7749295 | Vacuum cleaner with removable dust collector, and methods of operating the same | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +14 more | 2010-07-06 |
| 7731771 | Cyclone collector | Kie Tak Hyun, Young Bok Son, Hyoung-Joo Cho, Kyeong Seon Jeong | 2010-06-08 |
| 7601188 | Vacuum cleaner | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +14 more | 2009-10-13 |
| 7591884 | Air cleaner with electrostatic flocked piles | Sung Hwan Lee, Ok Chun Hyun | 2009-09-22 |
| 7582128 | Vacuum cleaner | Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim +14 more | 2009-09-01 |
| 7510471 | Flow spreading mechanism | Yoon-Seob Eom | 2009-03-31 |
| 7479171 | Dust separator for cyclone type cleaner | Hyoung-Joo Cho, Jung Wan Ryu, Kyeong Seon Jeong | 2009-01-20 |
| 7238225 | Plasma air dust collector | Young-ki Hong, Jeong-Ho Park | 2007-07-03 |
| 7228891 | Heat exchanger of ventilating system | Soo Yeon Shin, Seong Hwan Lee, Min-Chul Cho | 2007-06-12 |
| 7168482 | Heat exchanger of ventilating system | Seong Hwan Lee, Soo Yeon Shin, Min-Chul Cho, Kwang Won Lee | 2007-01-30 |
| 7147049 | Heat exchanger of ventilating system | Seong Hwan Lee, Min-Chul Cho, Soo Yeon Shin | 2006-12-12 |
| 6607702 | Photocatalyst filter, method for fabricating the same and air cleaner thereof | Kwang Ok Kang, Young-ki Hong, Kyong Wook Heo, Soo Yeon Shin, Jung Hun Kang +2 more | 2003-08-19 |
| 6576589 | Method for making anatase type titanium dioxide photocatalyst | Hai-sub Na, Woo Suk Choi, Chul Han Kwon, Young-ki Hong, Kyeong-Wook Heo +2 more | 2003-06-10 |
| 6350292 | Cyclone collector for a vacuum cleaner having a flow guide | Dong Jin Kwack, Hyeok Seong An, Kyoung Suk Lim, Jun-Sang Park, Byung-sun YANG | 2002-02-26 |