Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11223822 | Broadcast signal receiving apparatus and method of controlling thereof | Young Jin Lee, Jun-Seok Kang, Byung-ju Kwak, Chang-hyo Kim, Kyoung-seok NOH +1 more | 2022-01-11 |
| 10857525 | Catalyst for preparing acrolein and acrylic acid, and preparation method thereof | Hyun Sub Lim, Duk Ki Kim, Ju Yeon Park, Byung Yul Choi, Young Hyun Choe | 2020-12-08 |
| 10569260 | Method for preparing catalyst | Byung Yul Choi, Young Hyun Choe, Duk Ki Kim, Ju Yeon Park, Hyun Sub Lim +1 more | 2020-02-25 |
| 10428007 | Method for producing unsaturated aldehyde and unsaturated carboxylic acid | Byung Yul Choi, Junghoon Chang, Young Hyun Choe, Jun Seok Ko, Sang-hun Jeon | 2019-10-01 |
| 10270513 | Broadcast receiving apparatus and method for controlling thereof | Byung-ju Kwak, Young Jin Lee, Jun-Seok Kang, Chang-hyo Kim, Kyoung-seok NOH +1 more | 2019-04-23 |
| 10180418 | Lens-attached tissue cell pressurization device | Sang Kuy Han, Walter Herzog | 2019-01-15 |
| 10153855 | Broadcast receiver and control method thereof | Dong-Jin Park, Jun-Seok Kang, Chang-hyo Kim, Kyoung-seok NOH, Sung-ki Son +1 more | 2018-12-11 |
| 9919295 | High-performance polyoxometalate catalyst and method of preparing the same | Byung Yul Choi, Young Hyun Choe, Duk Ki Kim, Hyun Sub Lim, Hyo Sang You | 2018-03-20 |
| 9819894 | Digital television and control method thereof | — | 2017-11-14 |
| 9699662 | Broadcasting receiving apparatus, external apparatus, method for generating signal, and method for receiving signal | — | 2017-07-04 |
| 9433931 | High performance polyoxometal catalyst and method for producing the same | Byung Yul Choi, Ju Yeon Park, Young Hyun Choi, Duk Ki Kim, Hyun Sub Lim | 2016-09-06 |
| 8354482 | Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same | Byung Yul Choi, Yeon Shick Yoo, Young Jin Cho | 2013-01-15 |
| 8247344 | Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same | Byung Yul Choi, Yeon Shick Yoo, Young Jin Cho | 2012-08-21 |
| 8161157 | Method for displaying web user's authentication status in a distributed single login network | Allen Tom, Mohan Kumar S. Bethur, Jun-Shong Huang | 2012-04-17 |
| 8114805 | Method of preparing heteropoly acid catalyst | Hyun Kuk Noh, Won-Ho Lee, Byung Yul Choi, Gyo Hyun Hwang, Ju Yeon Park +6 more | 2012-02-14 |
| 7943710 | Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same | Byung Yul Choi, Yeon Shick Yoo, Young Jin Cho | 2011-05-17 |
| 7788376 | Method for displaying web user's authentication status in a distributed single login network | Allen Tom, Mohan Kumar S. Bethur, Jun-Shong Huang | 2010-08-31 |
| 7772442 | Method of producing unsaturated aldehyde and/or unsaturated acid | Yeon Shick Yoo, Byung Yul Choi, Young Hyun Choi, Young Jin Cho, Duk Ki Kim +2 more | 2010-08-10 |
| 7638458 | Complex metal oxide catalyst with high (meth) acrylic acid selectivity | Byung Yul Choi, Yeon Shick Yoo, Young Hyun Choe, Young Jin Cho, Duk Ki Kim +2 more | 2009-12-29 |
| 7635786 | Complex metal oxide catalyst with high (meth) acrylic acid selectivity | Byung Yul Choi, Yeon Shick Yoo, Young Hyun Choe, Young Jin Cho, Duk Ki Kim +2 more | 2009-12-22 |
| 7531147 | Method of producing unsaturated aldehyde and/or unsaturated acid | Yeon Shick Yoo, Byung Yul Choi, Young Hyun Choi, Young Jin Cho, Duk Ki Kim +2 more | 2009-05-12 |
| 7491673 | Method for preparing a catalyst for partial oxidation of acrolein | Jung-Hwa Kang, Won-Ho Lee, Min-Ho Kil, Byung Yul Choi, Yeon Shick Yoo +2 more | 2009-02-17 |
| 7365228 | Method for producing unsaturated fatty acids | Byung Yul Choi, Young Jin Cho, Yeon Shick Yoo, Young Hyun Choi, Duk Ki Kim +1 more | 2008-04-29 |
| 7341974 | Method for preparing a catalyst for partial oxidation of propylene | Jung-Hwa Kang, Won-Ho Lee, Min-Ho Kil, Byung Yul Choi, Yeon Shick Yoo +2 more | 2008-03-11 |
| 7326389 | Method of producing unsaturated aldehyde and/or unsaturated acid | Yeon Shick Yoo, Byung Yul Choi, Young Hyun Choi, Young Jin Cho, Duk Ki Kim +2 more | 2008-02-05 |