Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6516072 | Loudspeaker | Alexei Vinogradov | 2003-02-04 |
| 5857027 | Loudspeaker | Alxei Vladimir Vinogradov | 1999-01-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6516072 | Loudspeaker | Alexei Vinogradov | 2003-02-04 |
| 5857027 | Loudspeaker | Alxei Vladimir Vinogradov | 1999-01-05 |