Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7842411 | Separator and fuel cell stack using the same | Young-Seung Na, Kyoung-hwan Choi | 2010-11-30 |
| 7824819 | Membrane-electrode assembly for mixed reactant fuel cell and mixed reactant fuel cell system including the same | Chan Kwak, Alexey Alexandrovichserov, Won-Hyouk Jang, Si-Hyun Lee | 2010-11-02 |
| 7816051 | Fuel cell system | Yeong-Chan Eun, Seong-Jin An | 2010-10-19 |
| 7691516 | Fuel cell system and stack used therein | Dong Hun Lee, Ho-Jin Kweon, Hyoung-Juhn Kim, Seong-Jin An, Jong-Man Kim +3 more | 2010-04-06 |
| 7678491 | Stack and fuel cell system using the same | Eun-Suk Cho, Jong-Ki Lee, Ri-A Ju, Won-Hyouk Jang, Dong Yun Lee +2 more | 2010-03-16 |
| 7604886 | Polymer membrane for fuel cell, method of preparing the same, and stack for fuel cell and fuel cell system comprising the same | Hee-Tak Kim, Hae-Kwon Yoon | 2009-10-20 |
| RE40834 | Positive active material for rechargeable lithium batteries and method of preparing the same | Ho-Jin Kweon | 2009-07-07 |
| 7507501 | Positive active material composition for rechargeable lithium batteries | Ho-Jin Kweon, Hyun-Sook Jung | 2009-03-24 |
| 7445871 | Process of preparing a surface-treated positive active material for a lithium secondary battery | Ho-Jin Kweon | 2008-11-04 |
| 7329472 | Fuel cell system and stack used thereto | Dong Hun Lee, Ho-Jin Kweon, Seong-Jin An, Hyoung-Juhn Kim, Jong-Man Kim +2 more | 2008-02-12 |
| 7326498 | Method for preparing positive active material for rechargeable lithium battery and positive active material prepared by same | Yong-Chul Park, Geun-Bae Kim, Won-Il Jung | 2008-02-05 |
| 7316865 | Active material for lithium secondary battery and method of preparing active material | Ho-Jin Kweon | 2008-01-08 |
| 7309546 | Positive active material for rechargeable lithium battery | Ho-Jin Kweon, Kyung Ho Kim, Hee-young Sun | 2007-12-18 |
| 7285358 | Negative active material for lithium rechargeable batteries and method of fabricating same | Jung-Joon Park, Ho-Jin Kweon, Jang-Ho Yoon | 2007-10-23 |
| 7108944 | Active material having surface treatment layer for battery and method of preparing the same | Ho-Jin Kweon, Jang-Ho Yoon, Jung-Joon Park | 2006-09-19 |
| 6984469 | Positive active material for rechargeable lithium batteries and method of preparing same | Ho-Jin Kweon, Won-Il Jung | 2006-01-10 |
| 6972134 | Method of preparing positive active material for rechargeable lithium batteries | Ho-Jin Kweon, Won-Il Jung, Jeong Joon Park | 2005-12-06 |
| 6949233 | Method of preparing positive active material for rechargeable lithium batteries | Ho-Jin Kweon, Geun-Bae Kim | 2005-09-27 |
| 6846592 | Positive electrode for rechargeable lithium batteries and method of the same | Ho-Jin Kweon, Sang Won Lee | 2005-01-25 |
| 6818349 | Positive active material for rechargeable lithium-sulfur batteries and method of preparing same | Su-Suk Choi, Ho-Jin Kweon, Jea-Woan Lee, Ji-Seong Han | 2004-11-16 |
| 6797435 | Positive active material for rechargeable lithium batteries and method of preparing the same | Ho-Jin Kweon | 2004-09-28 |
| 6753111 | Positive active material for rechargeable lithium batteries and method for preparing same | Ho-Jin Kweon, Won-Il Jung | 2004-06-22 |
| 5503997 | A process for producing legionella specific antibiotic using Streptomyces sp. AL91 | Young-won Lee, Yeong S. Lee, Chang S. Yon, Chul H. Lee, Yoong H. Lim +1 more | 1996-04-02 |