Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11164475 | Virtual experience device for aviation leisure sports | Keumpil Song, Dong Hyuk Kim, Moon-Yong Seo, Kwang-Hyun Kim, Bok-Dong Choi | 2021-11-02 |
| D859129 | Loop for transformer | Woon-Yong Choi, Kyu Young Lee, Min Ha Lee | 2019-09-10 |
| 4347167 | Fine-grain semiconducting ceramic compositions | David A. Payne | 1982-08-31 |
| 4337162 | Internal boundary layer ceramic compositions | David A. Payne, Otto C. Jahnke | 1982-06-29 |
| 4284521 | Reduced alkaline earth metal powders and process for producing same | David A. Payne, Otto C. Jahnke | 1981-08-18 |
| 4237084 | Method of producing internal boundary layer ceramic compositions | David A. Payne, Otto C. Jahnke | 1980-12-02 |
| 4218723 | Heterophasic ceramic composition | David A. Payne | 1980-08-19 |