Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7969747 | Line cord filter | Robert P. Wierzbicki | 2011-06-28 |
| 5642416 | AM broadcast band interference filter for line-powered telephone | Noel Pratt | 1997-06-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7969747 | Line cord filter | Robert P. Wierzbicki | 2011-06-28 |
| 5642416 | AM broadcast band interference filter for line-powered telephone | Noel Pratt | 1997-06-24 |