Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670930 | Temperature-dependent switch | by Ulrika Hofsass, legal representative, by Marcel Peter Hofsass, legal representative, by Denise Petra Hofsass, legal representative, by Henrik Peter Hofsass, legal representative, by Carola Rika Hofsass, legal representative +1 more | 1997-09-23 |
| 5309131 | Thermal switch | by Henrik Peter Hofsass, legal representative, by Carola Rika Hofsass, legal representative, by Benjamin Michael Hofsass, legal representative, Jens Radbruch, Guenter Kruck | 1994-05-03 |
| 5239745 | Method for the manufacture of finished self-stabilizing resistors | — | 1993-08-31 |
| 5101185 | Coil carrier with safety switch | — | 1992-03-31 |
| 5046156 | Temperature switch with a bimetallic switch mechanism | — | 1991-09-03 |
| 5023744 | Temperature switching device | — | 1991-06-11 |
| 4887063 | Insulating casing for thermal switches | — | 1989-12-12 |
| 4849729 | Temperature-sensitive switch with a casing | — | 1989-07-18 |
| 4563667 | Temperature and/or current sensitive electrical switch | — | 1986-01-07 |
| 4470033 | Thermal switch | — | 1984-09-04 |
| 4330773 | Coil form with heat switch | — | 1982-05-18 |
| 4317097 | Heat switch | — | 1982-02-23 |
| 4306211 | Heat operated protective switch | — | 1981-12-15 |