Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10356534 | Apparatus and method for controlling the dynamic compressor and method for determining amplification values for a dynamic compressor | Dirk Oetting, Stephan D Ewert, Jens-Ekkehart APPELL | 2019-07-16 |
| 7013015 | Method for the operation of a hearing aid device or hearing device system as well as hearing aid device or hearing device system | Volkmar Hamacher, Inga Holube, Birger Kollmeier, Thomas Wittkop | 2006-03-14 |
| 6198830 | Method and circuit for the amplification of input signals of a hearing aid | Inga Holube, Birger Kollmeier | 2001-03-06 |
| 5895520 | Method of separating noxious substances from exhaust gases | Dietrich Rolke, Hans-Jochen Fell | 1999-04-20 |
| 4902728 | Surgical material | Hanns Pietsch, Karl G. Doppler, Barbara Krug, Wolfgang Meyer-Ingold, Ingrid Wesselkamp +2 more | 1990-02-20 |
| 4588583 | Surgical material | Hanns Pietsch, Detlef Kluck | 1986-05-13 |
| 4486488 | Composition for the production of bandages, bandages produced therewith and method for the production thereof | Hanns Pietsch | 1984-12-04 |
| 4456711 | Process for the preparation of a powder mixture for surgical use | Hanns Pietsch, Willi Eckloff | 1984-06-26 |