Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4628181 | Method of controlling the output characteristic of a welding power source, apparatus for arc welding, and electrical circuit to be used for such apparatus | Jiluan Pan, Renhao Zhang, Zhiming Ou | 1986-12-09 |