Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11666980 | Work hardened welds and methods for same | Yong Joo Kim, Stephen Douglas Obermark, Austin Tyler Hanes, William Francis Obermark | 2023-06-06 |
| 11339900 | Work hardened welds and methods for same | Yong Joo Kim, Stephen Douglas Obermark, Austin Tyler Hanes, William Francis Obermark | 2022-05-24 |
| 11014181 | Work hardened welds and methods for same | Yong Joo Kim, Stephen Douglas Obermark, Austin Tyler Hanes, William Francis Obermark | 2021-05-25 |