Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9777919 | Combustion apparatus | — | 2017-10-03 |
| 9702589 | Combustion apparatus having air intake preheater | — | 2017-07-11 |
| 9649710 | Method for braze-welding a fixing plate and a flow channel cap in a heat exchanger, and heat exchanger produced by same | Young-Sik Choi | 2017-05-16 |