Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979838 | Symmetric switching electrode method and related system | Jean Woloszko, Philip M. Tetzlaff | 2015-03-17 |
| 4625478 | Liner for tower silo and method of installing same | — | 1986-12-02 |
| 4479334 | Liner for tower silo and method of installing same | — | 1984-10-30 |