Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6864422 | Electrical isolation of an electronic device | James P. May, Charles L. Chisolm, Suresh Chintalapati | 2005-03-08 |
| D480069 | Loudspeaker design | Richard J. Carbone | 2003-09-30 |
| D477308 | Loudspeaker design | John W. Mazejka | 2003-07-15 |