Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5921284 | Shrink-type wall feedthrough fitting | — | 1999-07-13 |
| 5826886 | Wall feedthrough fitting | Gerhard Gauland, Ernst Seifried | 1998-10-27 |
| 4993724 | Wall feedthrough fitting | — | 1991-02-19 |
| 4889298 | Wall feedthrough fitting | — | 1989-12-26 |
| 4768024 | Apparatus for monitoring fire hazards in a building | — | 1988-08-30 |
| 4703136 | Sealing body for feedthrough for at least one conducting member through a wall opening | — | 1987-10-27 |
| 4646486 | Flame-retarding wall feedthrough fitting | — | 1987-03-03 |
| 4627647 | Wall feedthrough fitting | — | 1986-12-09 |
| 4226498 | Watertight wall feedthrough for electrical ground | — | 1980-10-07 |