Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9346695 | Apparatus for purifying wastewater and method thereof | Joo Hyung Ko, Yun Jung Kim, Hyun Bae Kim, Hyoung Gun Kim, Hae Wook Nam +4 more | 2016-05-24 |
| 4831746 | Method and apparatus for heating mineral fibers | Yee-Chun Lee, James S. Belt | 1989-05-23 |
| 4734996 | Method and apparatus for heating mineral fibers | Yee-Chun Lee, James S. Belt | 1988-04-05 |
| 4343635 | Glass fiber-forming apparatus | Clarence E. Fracker, Jr. | 1982-08-10 |
| 4318724 | Glass fiber-forming apparatus | Michael T. Pellegrin | 1982-03-09 |