Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7065224 | Microphone for a hearing aid or listening device with improved internal damping and foreign material protection | Elrick Lennaert Cornelius, Paul Christiaan van Hal, Mike Geskus | 2006-06-20 |
| 6849338 | Coating system for a porous substrate using an asphalt-containing thermosetting basecoat composition and a thermoplastic top coat composition | Leslie Clemens | 2005-02-01 |
| 6544596 | Method of coating a substrate using a thermosetting basecoat composition and a thermoplastic top coat composition | Leslie Clemens | 2003-04-08 |
| 5169617 | Method of treating produced gypsum | Ellen Wanzura, Guenter Fietsch, Helmut Meyer, Detlef Kunze, Hans-Juergen Hartmann +1 more | 1992-12-08 |