Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4765870 | Method of manufacture of an electric moisture-content sensor | Ivan Emmer, Zdenek Hajek | 1988-08-23 |
| 4441968 | Method of manufacture of an electric humidity detecting sensing element | Ivan Emmer, Zdenek Hajek | 1984-04-10 |