Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931613 | Electrical discharge scribing for improving core loss of grain-oriented silicon steel | Eugene W. Bartel, Rowland C. Rudolf, III | 1990-06-05 |
| 4919733 | Method for refining magnetic domains of electrical steels to reduce core loss | Randal K. Knipe, Carl P. Stroble | 1990-04-24 |
| 4915750 | Method for providing heat resistant domain refinement of electrical steels to reduce core loss | Randal K. Knipe | 1990-04-10 |
| 4780155 | Capacitive electrical discharge scribing for improving core loss of grain-oriented silicon steel | Eugene W. Bartel, Rowland C. Rudolf, III | 1988-10-25 |
| 4767469 | Electrical discharge scribing for improving core loss of grain-oriented silicon steel | Eugene W. Bartel, Rowland C. Rudolf, III | 1988-08-30 |
| 4737203 | Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing | Tien-Hung Shen | 1988-04-12 |
| 4680062 | Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing | Tien-Hung Shen | 1987-07-14 |