Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6164408 | Plenum mounted, flat panel masking loudspeaker system and method for mounting a masking loudspeaker in a ceiling plenum | Michael E. Lamm, Thomas J. Johnson | 2000-12-26 |
| 5760501 | Compression driver motor structure | Warren H. Grote, Vern Bertelsman, Bruce Marlin | 1998-06-02 |
| 4377294 | Vehicle fender and support bar | James R. Lockwood, Kenneth Leffel | 1983-03-22 |