Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798442 | Method of aligning two optical fiber ends for frontal contact | Helmut Feilhauer | 1989-01-17 |
| 4467142 | System for transmitting emergency calls from persons requiring assistance | DIETER RUPP, Wolfgang Weeber, Paul Lissner | 1984-08-21 |