Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10662107 | Borosilicate glass, light guide plate comprising the same and fabricating methods thereof | Du-Sun Hwang, Chang Hee Lee, Byung-Kook Choi, Jun-Bo Choi | 2020-05-26 |
| 10488586 | Glass light-guide plate and manufacturing method thereof | Chang Hee Lee, Byung-Kook Choi, Jun-Bo Choi, Du-Sun Hwang | 2019-11-26 |
| 10207950 | Glass light guiding plate | Chang Hee Lee, Byung-Kook Choi, Jun-Bo Choi | 2019-02-19 |
| 9115020 | Method and apparatus for manufacturing a low melting point nano glass powder | Hyung Sun Kim, Dong Wha Park, Sung-Hwan Cho, Sun-il Kim, Won Kyung Lee | 2015-08-25 |
| 6227803 | Apparatus for generating electric power using wind force | — | 2001-05-08 |
| 5854516 | Method and apparatus for generating electric power using wave force | — | 1998-12-29 |
| 5066867 | Method and device for generating electric power by use of wave force | — | 1991-11-19 |
| 4711458 | Roller skate | — | 1987-12-08 |