Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5889247 | Normally closed, pressure responsive electrical switch | — | 1999-03-30 |
| 5508483 | High pressure switch apparatus | David A. Czarn | 1996-04-16 |
| 5373127 | High pressure responsive switch device | — | 1994-12-13 |
| 5278367 | High pressure responsive switch and method for making same | — | 1994-01-11 |