Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4507651 | Contact-free push-button key for generating an electrical signal upon depression thereof | Michael Friedrichs | 1985-03-26 |
| 4265684 | Magnetic core comprised of low-retentivity amorphous alloy | — | 1981-05-05 |
| 4231262 | System for measuring entrained solid flow | Walter L. Ghering | 1980-11-04 |
| 4191544 | Gas cleaning apparatus | Walter C. Lapple | 1980-03-04 |