Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849034 | Thermal treatment for increasing magnetostrictive response of rare earth-iron alloy rods | John D. Verhoeven | 1989-07-18 |
| 4818304 | Method of increasing magnetostrictive response of rare earth-iron alloy rods | John D. Verhoeven, Edwin D. Gibson, Jerome E. Ostenson, Douglas K. Finnemore | 1989-04-04 |