Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589911 | Weeding method with sodium hydrogen carbonate | Koji Hasegawa | 2003-07-08 |
| 6322636 | Method of artificially forming patina on copper | — | 2001-11-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589911 | Weeding method with sodium hydrogen carbonate | Koji Hasegawa | 2003-07-08 |
| 6322636 | Method of artificially forming patina on copper | — | 2001-11-27 |