Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6405156 | Method for planning, constructing and/or maintaining a pipeline system and data processing system therefor | Ernst-Eckhardt Pöschel, Manfred Ziegerer, Ruth-Margarete Bickel, Erwin Rusitschka | 2002-06-11 |
| 5710820 | Programmable hearing aid | Raimund Martin, Werner Hohn | 1998-01-20 |
| 4995085 | Hearing aid adaptable for telephone listening | Gerhard Krauss, Helmut Schlosser | 1991-02-19 |
| 4629833 | Electric hearing aid | Gerhard Krauss, Helmut Schlosser | 1986-12-16 |