Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816959 | Lightning arrester including an active resistor core | Joseph Mosele, Roger Perkins | 1989-03-28 |
| 4811478 | Process for the production of a lightning arrester and products produced thereby | Joseph Mosele, Roger Perkins | 1989-03-14 |
| 4805064 | Lightning arrester having a housing with a high filler content | Hans Beer, Helmut Britsch, Tony Kaiser, Alois Muff | 1989-02-14 |