Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5276300 | AC/DC powered microwave oven | Douglas W. Low, Neil C. Titcomb | 1994-01-04 |
| 5027018 | High voltage electrophoresis apparatus | Robert A. Valley | 1991-06-25 |
| 4911817 | Electrophoresis apparatus | — | 1990-03-27 |
| RE32596 | Head top surface measurement utilizing screen parameters in electromagnetic casting | Gary L. Ungarean, John C. Yarwood, Derek E. Tyler | 1988-02-09 |
| 4682645 | Control system for electromagnetic casting of metals | Brian G. Lewis | 1987-07-28 |
| 4527096 | Drive circuit for capacitive electroluminescent panels | — | 1985-07-02 |
| 4495981 | Process and apparatus for synchronized electromagnetic casting of multiple strands | John C. Yarwood, Gary L. Ungarean, Derek E. Tyler | 1985-01-29 |
| 4495983 | Determination of liquid-solid interface and head in electromagnetic casting | Gary L. Ungarean, John C. Yarwood, Derek E. Tyler | 1985-01-29 |
| 4470447 | Head top surface measurement utilizing screen parameters in electromagnetic casting | Gary L. Ungarean, John C. Yarwood, Derek E. Tyler | 1984-09-11 |
| 4462457 | Transformer-driven shield for electromagnetic casting | John C. Yarwood, Gary L. Ungarean, Derek E. Tyler | 1984-07-31 |
| 4452297 | Process and apparatus for selecting the drive frequencies for individual electromagnetic containment inductors | Gary L. Ungarean, John C. Yarwood, Derek E. Tyler | 1984-06-05 |
| 4450890 | Process and apparatus for electromagnetic casting of multiple strands having individual head control | John C. Yarwood, Gary L. Ungarean, Derek E. Tyler | 1984-05-29 |
| 4446909 | Process and apparatus for electromagnetic casting of multiple strands having individual head control | John C. Yarwood, Gary L. Ungarean, Derek E. Tyler | 1984-05-08 |
| 4319625 | Electromagnetic casting process utilizing an active transformer-driven copper shield | John C. Yarwood, Gary L. Ungarean, Derek E. Tyler | 1982-03-16 |
| 4289946 | Electromagnetic casting apparatus | John C. Yarwood, Ik Y. Yun, Derek E. Tyler | 1981-09-15 |
| 4285387 | Transformer-driven shield for electromagnetic casting | John C. Yarwood, Gary L. Ungarean, Derek E. Tyler | 1981-08-25 |
| 4243938 | Digital bar graph tachometer | Andrew Willis Bliven, II | 1981-01-06 |
| 4213496 | Electromagnetic casting apparatus | John C. Yarwood, Ik Y. Yun, Derek E. Tyler | 1980-07-22 |