Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5495527 | Telephone privacy device | Philip E. Rollhaus, Jr., James Ryan, Eric E. Knutsen | 1996-02-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5495527 | Telephone privacy device | Philip E. Rollhaus, Jr., James Ryan, Eric E. Knutsen | 1996-02-27 |