Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D475574 | Roasting grate and lift rod | Christian S. Schoppmann | 2003-06-10 |
| 4845743 | System for selectively receiving telephone calls | — | 1989-07-04 |
| 4791664 | System for selectively receiving telephone calls | Siegfried G. Hitzler | 1988-12-13 |