Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9695498 | Partially carbonitriding heat treated stainless steel ferrule and manufacturing method thereof | Sam Rae Jung | 2017-07-04 |
| 9631747 | Partially carbonitriding heat treated stainless steel ferrule and manufacturing method thereof | Sam Rae Jung | 2017-04-25 |
| 9534284 | Partial heat treatment method in salt bath at low temperature | Sam Rae Jung | 2017-01-03 |